Check alternate in ReactTreeTraversal (facebook#8992)

Test Plan: Couldn't figure out how to write a unit test. :\ Verified that enter/leave bubbling now works correctly in one FB interface that was broken though.
AshD · Feb 13, 2017 · 1e722e4 · 1e722e4
1 parent 6367f9f
commit 1e722e4
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/renderers/shared/shared/ReactTreeTraversal.js b/src/renderers/shared/shared/ReactTreeTraversal.js
@@ -62,7 +62,7 @@ function getLowestCommonAncestor(instA, instB) {
   // Walk in lockstep until we find a match.
   var depth = depthA;
   while (depth--) {
-    if (instA === instB) {
+    if (instA === instB || instA === instB.alternate) {
       return instA;
     }
     instA = getParent(instA);
@@ -76,7 +76,7 @@ function getLowestCommonAncestor(instA, instB) {
  */
 function isAncestor(instA, instB) {
   while (instB) {
-    if (instB === instA) {
+    if (instA === instB || instA === instB.alternate) {
       return true;
     }
     instB = getParent(instB);