The comments for git_2014_04_26_2314 says "Avoid duplicate soldier names", but that doesn't apply for soldiers in transit.
I recruited 3 soldiers in 3 different hirings within the same hour, and 2 were identical clones. For silly reasons, I hired a soldier, saved, loaded the same game, hired another soldier, saved in the same slot, reloaded the same game again, and hired a third soldier. Number 2 and 3 were clones.
I starting to wonder if the "clone" issue might be a bigger problem than just the confusion with identical names.