title says it all. when a contact has a psm which consists only of an e-mail address, plus! replaces it with the custom name assigned to that e-mail address. this also happens if the contact's e-mail address is not the same as the one in the personal message.
example:
i tried to reproduce the bug and, when changing my personal message, it automatically changed to the custom name of the e-mail address i put in. (i put in "taxi@bot2k3.com" and it became "BOT2K3
[nb: custom name] - BOT2K3
[nb: real nickname]")
small bug, but it's annoying.