$ git clone -n https://src.fedoraproject.org/rpms/libcsv.git /var/lib/mock/f45-build-16001-481/root/chroot_tmpdir/scmroot/libcsv
Cloning into '/var/lib/mock/f45-build-16001-481/root/chroot_tmpdir/scmroot/libcsv'...
$ git fetch origin 44f61ee6b6911df51b6b1083183f888157f8e1ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcsv
 * [new ref]         44f61ee6b6911df51b6b1083183f888157f8e1ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44f61ee Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild