diff --git a/bi/core.js b/bi/core.js
index 67c0f1ee8d..5f6c5c308e 100644
--- a/bi/core.js
+++ b/bi/core.js
@@ -11564,19 +11564,23 @@ BI.Layout = BI.inherit(BI.Widget, {
                 oldEndVnode = oldCh[--oldEndIdx];
             } else if (sameVnode(oldStartVnode, newStartVnode, oldStartIdx, newStartIdx)) {
                 updated = this.patchItem(oldStartVnode, newStartVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 oldStartVnode = oldCh[++oldStartIdx];
                 newStartVnode = newCh[++newStartIdx];
             } else if (sameVnode(oldEndVnode, newEndVnode, oldEndIdx, newEndIdx)) {
                 updated = this.patchItem(oldEndVnode, newEndVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 oldEndVnode = oldCh[--oldEndIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldStartVnode, newEndVnode)) {
                 updated = this.patchItem(oldStartVnode, newEndVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 insertBefore(oldStartVnode, oldEndVnode, true);
                 oldStartVnode = oldCh[++oldStartIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldEndVnode, newStartVnode)) {
                 updated = this.patchItem(oldEndVnode, newStartVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 insertBefore(oldEndVnode, oldStartVnode);
                 oldEndVnode = oldCh[--oldEndIdx];
                 newStartVnode = newCh[++newStartIdx];
diff --git a/dist/bundle.js b/dist/bundle.js
index fbbbe61297..0d034c5d91 100644
--- a/dist/bundle.js
+++ b/dist/bundle.js
@@ -19920,19 +19920,23 @@ BI.Layout = BI.inherit(BI.Widget, {
                 oldEndVnode = oldCh[--oldEndIdx];
             } else if (sameVnode(oldStartVnode, newStartVnode, oldStartIdx, newStartIdx)) {
                 updated = this.patchItem(oldStartVnode, newStartVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 oldStartVnode = oldCh[++oldStartIdx];
                 newStartVnode = newCh[++newStartIdx];
             } else if (sameVnode(oldEndVnode, newEndVnode, oldEndIdx, newEndIdx)) {
                 updated = this.patchItem(oldEndVnode, newEndVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 oldEndVnode = oldCh[--oldEndIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldStartVnode, newEndVnode)) {
                 updated = this.patchItem(oldStartVnode, newEndVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 insertBefore(oldStartVnode, oldEndVnode, true);
                 oldStartVnode = oldCh[++oldStartIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldEndVnode, newStartVnode)) {
                 updated = this.patchItem(oldEndVnode, newStartVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 insertBefore(oldEndVnode, oldStartVnode);
                 oldEndVnode = oldCh[--oldEndIdx];
                 newStartVnode = newCh[++newStartIdx];
diff --git a/dist/core.js b/dist/core.js
index f03c80a3a1..f36f46beee 100644
--- a/dist/core.js
+++ b/dist/core.js
@@ -19869,19 +19869,23 @@ BI.Layout = BI.inherit(BI.Widget, {
                 oldEndVnode = oldCh[--oldEndIdx];
             } else if (sameVnode(oldStartVnode, newStartVnode, oldStartIdx, newStartIdx)) {
                 updated = this.patchItem(oldStartVnode, newStartVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 oldStartVnode = oldCh[++oldStartIdx];
                 newStartVnode = newCh[++newStartIdx];
             } else if (sameVnode(oldEndVnode, newEndVnode, oldEndIdx, newEndIdx)) {
                 updated = this.patchItem(oldEndVnode, newEndVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 oldEndVnode = oldCh[--oldEndIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldStartVnode, newEndVnode)) {
                 updated = this.patchItem(oldStartVnode, newEndVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 insertBefore(oldStartVnode, oldEndVnode, true);
                 oldStartVnode = oldCh[++oldStartIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldEndVnode, newStartVnode)) {
                 updated = this.patchItem(oldEndVnode, newStartVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 insertBefore(oldEndVnode, oldStartVnode);
                 oldEndVnode = oldCh[--oldEndIdx];
                 newStartVnode = newCh[++newStartIdx];
diff --git a/src/core/wrapper/layout.js b/src/core/wrapper/layout.js
index e2dd304cf0..c96cba4f67 100644
--- a/src/core/wrapper/layout.js
+++ b/src/core/wrapper/layout.js
@@ -380,19 +380,23 @@ BI.Layout = BI.inherit(BI.Widget, {
                 oldEndVnode = oldCh[--oldEndIdx];
             } else if (sameVnode(oldStartVnode, newStartVnode, oldStartIdx, newStartIdx)) {
                 updated = this.patchItem(oldStartVnode, newStartVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 oldStartVnode = oldCh[++oldStartIdx];
                 newStartVnode = newCh[++newStartIdx];
             } else if (sameVnode(oldEndVnode, newEndVnode, oldEndIdx, newEndIdx)) {
                 updated = this.patchItem(oldEndVnode, newEndVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 oldEndVnode = oldCh[--oldEndIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldStartVnode, newEndVnode)) {
                 updated = this.patchItem(oldStartVnode, newEndVnode, oldStartIdx) || updated;
+                children[this._getChildName(oldStartIdx)] = this._children[this._getChildName(oldStartIdx)];
                 insertBefore(oldStartVnode, oldEndVnode, true);
                 oldStartVnode = oldCh[++oldStartIdx];
                 newEndVnode = newCh[--newEndIdx];
             } else if (sameVnode(oldEndVnode, newStartVnode)) {
                 updated = this.patchItem(oldEndVnode, newStartVnode, oldEndIdx) || updated;
+                children[this._getChildName(oldEndIdx)] = this._children[this._getChildName(oldEndIdx)];
                 insertBefore(oldEndVnode, oldStartVnode);
                 oldEndVnode = oldCh[--oldEndIdx];
                 newStartVnode = newCh[++newStartIdx];