I can see that happening, however, in such a case I would look for a birth certificate as a source first. In my own tree, I have a person who's last name at birth is set up as their married name only because originally I didn't know their maiden name. To complicate further, her mother was married the times and so her lastname was recorded differently at different times depending on which "father" was around at the time. In addition, there are times when the person was created by someone else who didn't know the birth surname so the profile will have the wrong name as it's ID. It's always a good idea to compare before deciding to merge or reject due to the number of possible "complications".