Cobwebs can still generate unsupported when a stronghold is cut off by a cave

The bug

When a stronghold generates within or next to a cave, cobwebs can generate unsupported.

How to reproduce

1. Create a world with the following seed: 7624679963404965487
2. Run the command:

   /execute in minecraft:overworld run tp @s -8411.06 -48.37 1548.55 195.88 19.02 

   The targeted cobweb is completely unsupported