Function cleanup

packages/runtime-core/src/apiSetupHelpers.ts:555–561

()

  // We only need to balance ctx.scope.on() from setCurrentInstance(ctx),
  // then clear global currentInstance for user microtasks.
  const cleanup = () => {
    if (getCurrentInstance() !== ctx) ctx.scope.off()
    unsetCurrentInstance()
    if (inSSRSetup) {
      setInSSRSetupState(false)
    }
  }

  if (isPromise(awaitable)) {
    awaitable = awaitable.catch(e => {