Garrison waypoint cursor can be incorrect

[wowgetoffyourcellphone]

If I set a waypoint from a barracks or other soldier producing structure to an enemy structure the cursor is always attack, setting an attack command for the outcoming units.

But if that building is unattackable (it can only be captured for example), the newly trained units will just stand there in front of their trainer building. Expected Behavior:

That waypoint cursor should have changed to capture in this instance and the exiting units should have gone to go capture that building.

[Langbart]

#6727

[Freagarach]

@Langbart, you beat me to it by a few seconds! :)

[Freagarach]

In 27533:

Fix rally point cursor and capturing from spawn.

Introduced in r27399 / rP27399 (the default attack mode switch).

Differential revision: ​https://code.wildfiregames.com/D4933
Tested by: @Langbart, @phosit, @wowgetoffyourcellphone
Fixes: #6727
(Refs. #6733)