yum debuginfo strangeness

[Neal Becker]

I pushed mercurial-1.8-1 to fc14 testing.  The next day I unpushed it.

Today I did yum update.  updates-testing is not enabled.  I got:
 rpm -q mercurial-debuginfo
mercurial-debuginfo-1.8-1.fc14.x86_64

Of course, I don't have mercurial-1.8.

So this is undesirable behavior.  The debuginfo I might need for my currently 
installed 
mercurial-1.7.5-1.fc14.x86_64

got removed, and a useless debuginfo replaced it.