calc rect when selecting inline instance

app/designer/features/workspace/canvas-tools/outline/selected-instance-outline.tsx

@@ -11,7 +11,9 @@ export const SelectedInstanceOutline = () => {
   const [instanceData] = useSelectedInstanceData();
   const [textEditingInstanceId] = useTextEditingInstanceId();
 
-  const isEditingCurrentInstance = textEditingInstanceId === instanceData?.id;
+  const isEditingCurrentInstance =
+    textEditingInstanceId !== undefined &&
+    textEditingInstanceId === instanceData?.id;
 
   if (
     instanceData === undefined ||

app/shared/dom-hooks/use-measure.ts

@@ -16,7 +16,7 @@ export type UseMeasureResult<
 export const useMeasure = <
   MeasuredElement extends HTMLElement = HTMLElement
 >(): UseMeasureResult<MeasuredElement> => {
-  const [element, ref] = useState<MeasuredElement | null>(null);
+  const [element, setElement] = useState<MeasuredElement | null>(null);
   const [rect, setRect] = useState<DOMRect>();
 
   const handleChange = useCallback(() => {
@@ -43,5 +43,7 @@ export const useMeasure = <
     };
   }, [element, observer]);
 
-  return [ref, rect];
+  useEffect(handleChange, [handleChange]);
+
+  return [setElement, rect];
 };