From ac81dcf0cc7f5fc722a0c14d1cc92ece5cc0db07 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 13 Aug 2020 17:45:21 -0400
Subject: [PATCH] fix(reactivity): effect should still check sync self-trigger

---
 packages/reactivity/src/effect.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/reactivity/src/effect.ts b/packages/reactivity/src/effect.ts
index 95576166e..15988daad 100644
--- a/packages/reactivity/src/effect.ts
+++ b/packages/reactivity/src/effect.ts
@@ -178,7 +178,11 @@ export function trigger(
   const effects = new Set<ReactiveEffect>()
   const add = (effectsToAdd: Set<ReactiveEffect> | undefined) => {
     if (effectsToAdd) {
-      effectsToAdd.forEach(effect => effects.add(effect))
+      effectsToAdd.forEach(effect => {
+        if (effect !== activeEffect) {
+          effects.add(effect)
+        }
+      })
     }
   }