Vines grow under trapdoors then break

The bug

Vines can grow under trapdoors, but then break again after some time.
It is not clear what the intended behavior is, also considering MC-117008.

How to reproduce

1. Place a lower trapdoor
2. Place a vine on the block below it
3. Increase randomTickSpeed

   /gamerule randomTickSpeed 10000
   

   The vine grows on the undersite of the trapdoor, and then breaks after some time