[Bug] Multiple repair crews can spawn and move into the same square

[oznogon]

Steps to reproduce

Launch Basic and join the player ship's Engineering screen. Repeat until two or more repair crews are randomly spawned into the same interior cell.

Or:

1. Launch Basic and join the player ship's Engineering screen.
2. Select a repair crew.
3. Click/tap a cell far from its current location to move the selected crew into that cell.
4. Quickly select another repair crew, then click/tap to move it into the same cell as the previous crew.

Expected behavior

Multiple repair crews can't overload a single interior cell.

Observed behavior

Multiple crew can fit into the same interior cell. For example, on an Atlantis it's possible to fit all three crew into a single cell. This allows repairing a two-cell room with three repair crew.

Screencast_20260731_015708.webm

If this behavior is expected, then the bug is that repair crew selection prevents moving additional crew into an already occupied cell.

[daid]

This isn't intentional, but I was aware of that you could do this (as in, this always has been possible). So I'm not apposed a fix at all.