Can´t select opponent in battle calculator

[JPBergsma]

Reproduction Steps

1. During a game, press ctrl + B
2. Scroll down to list of opponents
3. Select a different opponent.

The units of the previous opponent are still displayed.

Attach a Save Game

The error is not save game specific it occurs with multiple maps.
For example new world order

Engine Version

Engine Version: 2.7.151.29

Is there anything else we should know?

[frigoref]

@JPBergsma Thank you very much for submitting such a concise bug description!
Only thing missing is a clear to-be state definition.
Do you expect the list of units to change to the units from the newly selected opponent (with 0 values)?

[frigoref]

PR #13587 (Fix13580 select in battle calculator) is ready, but still waiting for code review.