CVS corruption/mistagging?

Looking into recent buildfarm failures on the 7.4 branch:

http://www.pgbuildfarm.org/cgi-bin/show_status.pl

It looks like parts of the CVS repository have been mistagged as belonging 
to REL7_4_STABLE or have been corrupted somehow:


http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/btree_gist/btree_bit.c?sortby=date;only_with_tag=REL7_4_STABLE

I'm not sure what's going on here, but something has gone bad.

Kris Jurka