With mirror modelling, moving shared vertex away from the middle breaks symmetry

[Cub0use]

What are you trying to do, and what do you expect to happen?

Using mirror modelling, with an element that has 2 faces sharing a single vertex in the middle.

What happens instead?

Moving away from the middle this vertex creates/preserves an additional face on one side.

(The symmetrical faces should split off imo, I don't see much use in keeping an isolated edge connecting them)

https://github.com/JannisX11/blockbench/assets/81629481/932e3a68-f3fd-4b77-b0e6-ef3e5a7df705

Model format in which the issue occurs

Generic

Blockbench variant

Program

Blockbench version

4.9.0

Operating System

W10

Installed Blockbench plugins

N/A