Fix：修复文本编辑实时渲染模式编辑中展开收起按钮闪烁的问题

README.md

@@ -318,6 +318,13 @@ const mindMap = new MindMap({
                 <sub style="font-size:14px"><b>御风</b></sub>
             </a>
         </td>
+        <td align="center" style="word-wrap: break-word; width: 75.0; height: 75.0">
+            <a href="#">
+                <img src="./web/src/assets/avatar/兔子快跑.jpg" width="50;"  style="border-radius:50%;align-items:center;justify-content:center;overflow:hidden;padding-top:10px"/>
+                <br />
+                <sub style="font-size:14px"><b>兔子快跑</b></sub>
+            </a>
+        </td>
     </tr>
 </table>
 
@@ -915,5 +922,12 @@ const mindMap = new MindMap({
                 <sub style="font-size:14px"><b>Sword</b></sub>
             </a>
         </td>
+        <td align="center" style="word-wrap: break-word; width: 75.0; height: 75.0">
+            <a href="#">
+                <img src="./web/src/assets/avatar/好好先生Ervin.jpg" width="50;"  style="border-radius:50%;align-items:center;justify-content:center;overflow:hidden;padding-top:10px"/>
+                <br />
+                <sub style="font-size:14px"><b>好好先生Ervin</b></sub>
+            </a>
+        </td>
     </tr>
 </table>

simple-mind-map/src/core/render/node/MindMapNode.js

@@ -448,6 +448,10 @@ class MindMapNode {
     this.group.clear()
     const { hoverRectPadding, tagPosition, openRealtimeRenderOnNodeTextEdit } =
       this.mindMap.opt
+    // 避免编辑过程中展开收起按钮闪烁的问题
+    if (openRealtimeRenderOnNodeTextEdit && this._expandBtn) {
+      this.group.add(this._expandBtn)
+    }
     let { width, height, textContentItemMargin } = this
     let { paddingY } = this.getPaddingVale()
     const halfBorderWidth = this.getBorderWidth() / 2