Portable CVS repo problems

[mancha]

Hello. While syncing OpenSSH portable CVS I received:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle 
attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
d0:46:24:c1:63:cf:6b:f2:e3:33:3d:15:62:08:53:72.
Please contact your system administrator.
[EDIT]
ECDSA host key for anoncvs.mindrot.org has changed and you have 
requested strict checking.
Host key verification failed.

Please confirm/deny the key change. 

--mancha

PS If this change is valid, can you please give details on how
to track these changes in the future?