Don't clear static flags in resetWorkInProgress

Fixes the regression test added in facebook#20433
acdlite · Jan 13, 2021 · d3750e8 · d3750e8
1 parent c2fb70d
commit d3750e8
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diff --git a/packages/react-reconciler/src/ReactFiber.new.js b/packages/react-reconciler/src/ReactFiber.new.js
@@ -365,7 +365,7 @@ export function resetWorkInProgress(workInProgress: Fiber, renderLanes: Lanes) {
 
   // Reset the effect flags but keep any Placement tags, since that's something
   // that child fiber is setting, not the reconciliation.
-  workInProgress.flags &= Placement;
+  workInProgress.flags &= StaticMask | Placement;
 
   // The effect list is no longer valid.
   workInProgress.nextEffect = null;

diff --git a/packages/react-reconciler/src/ReactFiber.old.js b/packages/react-reconciler/src/ReactFiber.old.js
@@ -365,7 +365,7 @@ export function resetWorkInProgress(workInProgress: Fiber, renderLanes: Lanes) {
 
   // Reset the effect flags but keep any Placement tags, since that's something
   // that child fiber is setting, not the reconciliation.
-  workInProgress.flags &= Placement;
+  workInProgress.flags &= StaticMask | Placement;
 
   // The effect list is no longer valid.
   workInProgress.nextEffect = null;