Description of problem:
I just upgraded to rawhide from F-10.  I have the following relevant snippet in my .muttrc:

set spoolfile="imaps://redhatmailserver/INBOX"
set imap_user=myusername
set imap_passive=yes
set imap_authenticators=gssapi
set certificate_file=~/.mutt/certificates

Version-Release number of selected component (if applicable):
mutt-1.5.19-4.fc11.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Start mutt
2. Accept certificate (a)lways
3. Restart mutt and get prompted again for saving certificate
  
Actual results:
Warning trying to save second time

Expected results:
Saved certificate used

Additional info:
This doesn't not happen with another mail account I have which saves to the same certificate file.  Removing and re-creating that file doesn't do anything.  I tried running with "-d 4" but "DEBUG was not defined during compilation."