REPORT-52087 单元格元素数据列中首次修改字符不会生效

designer-base/src/main/java/com/fr/design/gui/icombobox/LazyComboBox.java

@@ -55,12 +55,14 @@ public abstract class LazyComboBox extends UIComboBox implements PopupMenuListen
 
     @Override
     public void setSelectedItem(Object anObject) {
-        initialSelected = anObject;
         if (loaded) {
             super.setSelectedItem(anObject);
         } else {
-            this.setModel(new DefaultComboBoxModel<>(new Object[]{anObject}));
+            if (initialSelected == null) {
+                this.setModel(new DefaultComboBoxModel<>(new Object[]{anObject}));
+            }
             super.setSelectedItem(anObject);
+            initialSelected = anObject;
         }
     }