After changing your name, when an op or colony has incoming it puts the outpost under the previous name.

Example:
Previous name: Fluff
New name: feathers

when "feathers" has incoming, the window will show "fluff's op 0"

Thats because your still fluff just with the name change...

the name change doesnt really change anything except for when people hover there mouse over you it says feathers. xD this is why you should get the right name when you join a game.