update "Advance citizen infantry" doesn't apply to garison units

[rogue-spectre]

I noticed that sometime i was not able to ungarison units from a building. I find a way to create the bug

• create infantry
• garrison them into a building
• make the "advance citizen infantry" update from the infantry building
• [optional] create other infantry
• garrison other infantry into the same previous building
• when selecting the building one can see two separate groups of the same advance citizen.

1 - Clicking on one group allow to ungarrison units ( of the second group and after of the one we are clicking to ) 2 - Clicking on the second group does not do anything