old

facebook · Jun 28, 2022 · 6fb4d3c · 6fb4d3c
1 parent f09af6c
commit 6fb4d3c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/packages/react-reconciler/src/ReactFiberLane.old.js b/packages/react-reconciler/src/ReactFiberLane.old.js
@@ -813,9 +813,9 @@ export function addTransitionToLanesMap(
     const index = laneToIndex(lane);
     let transitions = transitionLanesMap[index];
     if (transitions === null) {
-      transitions = [];
+      transitions = new Set();
     }
-    transitions.push(transition);
+    transitions.add(transition);
 
     transitionLanesMap[index] = transitions;
   }