$ git clone -n https://src.fedoraproject.org/rpms/stalld.git /var/lib/mock/f45-build-36456-704/root/chroot_tmpdir/scmroot/stalld
Cloning into '/var/lib/mock/f45-build-36456-704/root/chroot_tmpdir/scmroot/stalld'...
$ git fetch origin 43dd31d2acbb16be67508523d428961bb41849c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stalld
 * [new ref]         43dd31d2acbb16be67508523d428961bb41849c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43dd31d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild