Merge branch 'edison/fix/vaporRenderSlotfallback' into edison/testVapor

diff --cc packages/runtime-vapor/__tests__/componentSlots.spec.ts
Simple merge

diff --cc packages/runtime-vapor/src/componentSlots.ts
index 9dfde2a9c9f000df3abc5e60a1eb846b9fc97b4d,8b9a078d90b4db0bdbbe6144aaacb6d2fe40a532..1ec6969bc98d05cbda5df296c5184b47710cb673
--- 1/packages/runtime-vapor/src/componentSlots.ts
--- 2/packages/runtime-vapor/src/componentSlots.ts
+++ b/packages/runtime-vapor/src/componentSlots.ts
@@@ -1,12 -1,11 +1,18 @@@
 -import { EMPTY_OBJ, NO, hasOwn, isArray, isFunction } from '@vue/shared'
 +import {
 +  EMPTY_OBJ,
 +  NO,
 +  SLOT_ANCHOR_LABEL,
 +  hasOwn,
 +  isArray,
 +  isFunction,
 +} from '@vue/shared'
- import { type Block, type BlockFn, DynamicFragment, insert } from './block'
+ import {
+   type Block,
+   type BlockFn,
+   DynamicFragment,
+   insert,
+   isValidBlock,
+ } from './block'
  import { rawPropsProxyHandlers } from './componentProps'
  import { currentInstance, isRef } from '@vue/runtime-dom'
  import type { LooseRawProps, VaporComponentInstance } from './component'