OpenRA/OpenRA — pull request #3470 by ScottNZ (2013-06-23 21:20:53+00:00)
Title: Favour newer buildings over older buildings when a unit can appear from ...

...multiple buildings after being built.
Rationale: players building a second production building in RA are really refining the location where they want their units to appear after being built, so make this assumption until they set a building to primary.