Canvas: Fix inline edit toggle crash (#55961) (#55967)

(cherry picked from commit 5a9dfd7173)

Co-authored-by: Nathan Marrs <nathanielmarrs@gmail.com>

public/app/plugins/panel/canvas/CanvasPanel.tsx

@@ -168,15 +168,16 @@ export class CanvasPanel extends Component<Props, State> {
     const shouldShowAdvancedTypesSwitched =
       this.props.options.showAdvancedTypes !== nextProps.options.showAdvancedTypes;
     if (shouldUpdateSceneAndPanel || inlineEditingSwitched || shouldShowAdvancedTypesSwitched) {
+      if (inlineEditingSwitched) {
+        // Replace scene div to prevent selecto instance leaks
+        this.scene.revId++;
+      }
+
       this.needsReload = false;
       this.scene.load(nextProps.options.root, nextProps.options.inlineEditing, nextProps.options.showAdvancedTypes);
       this.scene.updateSize(nextProps.width, nextProps.height);
       this.scene.updateData(nextProps.data);
       changed = true;
-
-      if (inlineEditingSwitched && this.props.options.inlineEditing) {
-        this.scene.selecto?.destroy();
-      }
     }
 
     return changed;

public/app/plugins/panel/canvas/editor/layerEditor.tsx

@@ -32,7 +32,7 @@ export function getLayerEditor(opts: InstanceState): NestedPanelOptions<LayerEdi
         break;
       }
 
-      if (element.parent) {
+      if (element && element.parent) {
         scene.currentLayer = element.parent;
         break;
       }