From fbd198fbfe2f87c3c15a63d9770d00bf3fc9c142 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E1=B4=9C=C9=B4=D0=B2=CA=8F=D1=82=E1=B4=87?=
 <i@shangyes.net>
Date: Thu, 8 Oct 2020 10:34:53 +0800
Subject: [PATCH] fix(v-model): avoid clearing IME compose state on updates
 (#2304)

fix #2302
---
 packages/runtime-dom/src/directives/vModel.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/runtime-dom/src/directives/vModel.ts b/packages/runtime-dom/src/directives/vModel.ts
index c7dfa40c..90084eed 100644
--- a/packages/runtime-dom/src/directives/vModel.ts
+++ b/packages/runtime-dom/src/directives/vModel.ts
@@ -79,6 +79,8 @@ export const vModelText: ModelDirective<
   },
   beforeUpdate(el, { value, modifiers: { trim, number } }, vnode) {
     el._assign = getModelAssigner(vnode)
+    // avoid clearing unresolved text. #2302
+    if ((el as any).composing) return
     if (document.activeElement === el) {
       if (trim && el.value.trim() === value) {
         return