$ git clone -n https://src.fedoraproject.org/rpms/wcslib.git /var/lib/mock/f45-build-38291-723/root/chroot_tmpdir/scmroot/wcslib
Cloning into '/var/lib/mock/f45-build-38291-723/root/chroot_tmpdir/scmroot/wcslib'...
$ git fetch origin a111b1d15db3098635567661539e06398aeaeee4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wcslib
 * [new ref]         a111b1d15db3098635567661539e06398aeaeee4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a111b1d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild