fix: ensure backwards compat for pre-compiled sfc components

fix #3493

packages/runtime-core/src/helpers/renderSlot.ts

@@ -26,7 +26,7 @@ export function renderSlot(
   // this is not a user-facing function, so the fallback is always generated by
   // the compiler and guaranteed to be a function returning an array
   fallback?: () => VNodeArrayChildren,
-  hasSlotted?: boolean
+  noSlotted?: boolean
 ): VNode {
   let slot = slots[name]
 
@@ -54,7 +54,7 @@ export function renderSlot(
       ? PatchFlags.STABLE_FRAGMENT
       : PatchFlags.BAIL
   )
-  if (hasSlotted && rendered.scopeId) {
+  if (!noSlotted && rendered.scopeId) {
     rendered.slotScopeIds = [rendered.scopeId + '-s']
   }
   isRenderingCompiledSlot--