I just tried to re-create your scenario in my sandbox and was not able to. Copying and pasting the addressed into those fields should not cause any issues, nor is character length as I also copied mine and made sure they were the same length as the user you were working on in your screen shot.
It is strange that this happened for you, but I am glad it did allow the save to go through after you typed it in. If this is the only instance of this happening I would consider it a system goof. Please let us know if it starts to cause problems with further account creation though.
If there is anything else I can do for you on this please let me know.