$ git clone -n https://src.fedoraproject.org/rpms/perl-Config-Perl-V.git /var/lib/mock/f45-build-22502-591/root/chroot_tmpdir/scmroot/perl-Config-Perl-V
Cloning into '/var/lib/mock/f45-build-22502-591/root/chroot_tmpdir/scmroot/perl-Config-Perl-V'...
$ git fetch origin c732991ec98ff789ed981233256ad985bfb48568:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Config-Perl-V
 * [new ref]         c732991ec98ff789ed981233256ad985bfb48568 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c732991 0.40 bump (rhbz#2506162)