Fix a bug in rendering CC: changes.
Fix a bug in rendering CC: changes.

The comparison has to be done on the unobfuscated addresses, otherwise there's a possibility that no change will be detected in case there's a collision on the ''name@...'' part. This will have the undesirable effect that the change will be shown in the "changed from ''old'' to ''new''", with ''old'' and ''new'' lists  containing the full e-mail addresses.

Related to #153.

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@6242 af82e41b-90c4-0310-8c96-b1721e28e2e2

dafrito/trac-mirror,moreati/trac-gitsvn,dafrito/trac-mirror,dokipen/trac,moreati/trac-gitsvn,dafrito/trac-mirror,moreati/trac-gitsvn,exocad/exotrac,exocad/exotrac,moreati/trac-gitsvn,exocad/exotrac,dafrito/trac-mirror,dokipen/trac,dokipen/trac,exocad/exotrac