I have the same problem, but the stats are different from what they'd usually be.
Instead of a Balanced Bec De Corbin's 37p swing, 27p thrust, 94 speed and 15 strength requirement my "Tempered Bec De Corbin" has 40b swing, 30p thrust, 96 speed and 18 strength requirement.
My build was only going to have 15 strength so if I have to level it up to 18, and then have it reset itself to a Balanced Bec De Corbin's stats I will be mightily pissed off.
Any help would be appreciated.