$ git clone -n https://src.fedoraproject.org/rpms/sawfish-pager.git /var/lib/mock/f45-build-35564-696/root/chroot_tmpdir/scmroot/sawfish-pager
Cloning into '/var/lib/mock/f45-build-35564-696/root/chroot_tmpdir/scmroot/sawfish-pager'...
$ git fetch origin 71683d05c0d6a6e485efd0b4d41319fcff6c62e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sawfish-pager
 * [new ref]         71683d05c0d6a6e485efd0b4d41319fcff6c62e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71683d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild