$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-CSV-Separator.git /var/lib/mock/f45-build-26986-620/root/chroot_tmpdir/scmroot/perl-Text-CSV-Separator
Cloning into '/var/lib/mock/f45-build-26986-620/root/chroot_tmpdir/scmroot/perl-Text-CSV-Separator'...
$ git fetch origin 78acbe4ca39237eb7afc2487c572900e119d4e9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-CSV-Separator
 * [new ref]         78acbe4ca39237eb7afc2487c572900e119d4e9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78acbe4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild