From 71bfdc8d4d454e0d85954ef586694893c14533bf Mon Sep 17 00:00:00 2001
From: Vadim Kruglov <vadim.kruglov@libertexgroup.com>
Date: Fri, 12 Apr 2024 18:33:55 +0700
Subject: [PATCH] fix(transition): transition is breaking/flickering when enter
 is canceled

---
 packages/runtime-dom/src/components/Transition.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/runtime-dom/src/components/Transition.ts b/packages/runtime-dom/src/components/Transition.ts
index cce247fe1ae..71385926d7b 100644
--- a/packages/runtime-dom/src/components/Transition.ts
+++ b/packages/runtime-dom/src/components/Transition.ts
@@ -239,9 +239,11 @@ export function resolveTransitionProps(
       if (__COMPAT__ && legacyClassEnabled && legacyLeaveFromClass) {
         addTransitionClass(el, legacyLeaveFromClass)
       }
+      // add *-leave-active class before reflow so in the case of a cancelled enter transition
+      // the css will not get the final state (#10677)
+      addTransitionClass(el, leaveActiveClass)
       // force reflow so *-leave-from classes immediately take effect (#2593)
       forceReflow()
-      addTransitionClass(el, leaveActiveClass)
       nextFrame(() => {
         if (!el._isLeaving) {
           // cancelled