$ git clone -n https://src.fedoraproject.org/rpms/tcsh.git /var/lib/mock/f45-build-36909-709/root/chroot_tmpdir/scmroot/tcsh
Cloning into '/var/lib/mock/f45-build-36909-709/root/chroot_tmpdir/scmroot/tcsh'...
$ git fetch origin 53685af8b1b739b08fd235483763756db3609455:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcsh
 * [new ref]         53685af8b1b739b08fd235483763756db3609455 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53685af Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild