Problem with master key

[Jean-Marc Choulet]

Hello,

I made a mistake. I exported the K/M key with ktadd :(...  the password 
had changed.

I could not use kadmin.local

I changed the password of K/M with the old value with cpw.

I can use kadmin.local :) without password, but if I try to change a 
passwd for a principal, I get  this message :

change_password: No matching key in entry while changing password for


All works fine with a administrator account.

Help me :(