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

fix #2535
vuejs · Nov 27, 2020 · 2ab8c41 · 2ab8c41
1 parent 6e46a57
commit 2ab8c41
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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