v-if Transition inside Suspense never completes

[Jexordexan]

Version

3.0.0-rc.4

Reproduction link

https://codesandbox.io/s/vue-3-transition-error-tyxf7?file=/index.html

Steps to reproduce

A transition with a v-if inside a Suspense element never finishes its transition. This bug was introduced by #1588.

        <button @click="show = !show">Toggle modal</button>
        <Suspense>
          <Transition>
            <div class="modal" v-if="show">
              I wont complete my animation becuase I'm in a Suspense
            </div>
          </Transition>
        </Suspense>
        <Transition>
          <div class="modal" v-if="show">
            I will complete my animation
          </div>
        </Transition>

What is expected?

The transition finishes

What is actually happening?

The v-enter-active and v-enter-from classes are applied, but the rest of the transition is never scheduled due to the parent being a Suspense.