From ebf7b3a9353581f2871dce01c1de4ffccd33729a Mon Sep 17 00:00:00 2001
From: "Henry.Wang" <Henry.Wang@fanruan.com>
Date: Tue, 20 Apr 2021 15:45:43 +0800
Subject: [PATCH] =?UTF-8?q?KERNEL-7542=20=E4=BC=98=E5=8C=96=E8=AE=BE?=
 =?UTF-8?q?=E8=AE=A1=E5=99=A8=E5=8F=91=E7=8E=B0=E7=9A=84=E4=B8=80=E4=BA=9B?=
 =?UTF-8?q?=E9=97=AE=E9=A2=98?=
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---
 .../com/fr/design/mainframe/EastRegionContainerPane.java    | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java b/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java
index 8827d6a85..984edd38d 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/EastRegionContainerPane.java
@@ -837,8 +837,10 @@ public class EastRegionContainerPane extends UIEastResizableContainer {
         }
 
         public void replaceContentPane(JComponent pane) {
-            contentArea.remove(this.contentPane);
-            contentArea.add(this.contentPane = pane);
+            if (pane != this.contentPane) {
+                contentArea.remove(this.contentPane);
+                contentArea.add(this.contentPane = pane);
+            }
             if (popupDialog != null && isPoppedOut) {
                 popupDialog.replaceContentPane(this);
             }