Xcode Source Control showing multiple Working Copies

Question

Xcode is showing multiple working copies:

Working Copies
myProject - master
myProject_olderRepo
myProject_originalRepo

The second two are g

Answer 1

I had two instances of the same project in my ProjectNavigator in XCode. One of them was marked with M and the other one with ?

All I had to do to get rid of the copy, was delete the project marked with ? by control-clicking on it and selecting delete.