Fix scope issue (facebook#19434)

trueadm · web-flow · commit 30e3cfe40679 · 2020-07-22T23:05:50.000+01:00
diff --git a/packages/react-dom/src/events/DOMPluginEventSystem.js b/packages/react-dom/src/events/DOMPluginEventSystem.js
@@ -778,7 +778,8 @@ export function accumulateSinglePhaseListeners(
       enableCreateEventHandleAPI &&
       enableScopeAPI &&
       tag === ScopeComponent &&
-      lastHostComponent !== null
+      lastHostComponent !== null &&
+      stateNode !== null
     ) {
       const reactScopeInstance = stateNode;
       const eventHandlerlisteners = getEventHandlerListeners(
