$ git clone -n https://src.fedoraproject.org/rpms/perl-Convert-Color-XTerm.git /var/lib/mock/f45-build-22552-593/root/chroot_tmpdir/scmroot/perl-Convert-Color-XTerm
Cloning into '/var/lib/mock/f45-build-22552-593/root/chroot_tmpdir/scmroot/perl-Convert-Color-XTerm'...
$ git fetch origin 9b0301c9c182e1a91c1fab47bc86f689aa0d5a5b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Convert-Color-XTerm
 * [new ref]         9b0301c9c182e1a91c1fab47bc86f689aa0d5a5b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b0301c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild