From: Evan You <yyx990803@gmail.com>
Date: Fri, 27 Nov 2020 19:35:38 +0000 (-0500)
Subject: fix(slots): dynamically named slots should be keyed by name
X-Git-Tag: v3.0.4~38
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ab8c41a1a43952fb229587a9da48d9a1214ab9e;p=thirdparty%2Fvuejs%2Fcore.git

fix(slots): dynamically named slots should be keyed by name

fix #2535
---

diff --git a/packages/runtime-core/src/helpers/renderSlot.ts b/packages/runtime-core/src/helpers/renderSlot.ts
index c20b8a191d..420c4ffc10 100644
--- a/packages/runtime-core/src/helpers/renderSlot.ts
+++ b/packages/runtime-core/src/helpers/renderSlot.ts
@@ -47,7 +47,7 @@ export function renderSlot(
   const validSlotContent = slot && ensureValidVNode(slot(props))
   const rendered = createBlock(
     Fragment,
-    { key: props.key },
+    { key: props.key || `_${name}` },
     validSlotContent || (fallback ? fallback() : []),
     validSlotContent && (slots as RawSlots)._ === SlotFlags.STABLE
       ? PatchFlags.STABLE_FRAGMENT