$ git clone -n https://src.fedoraproject.org/rpms/spacebar.git /var/lib/mock/f40-build-2326590-58839/root/chroot_tmpdir/scmroot/spacebar
Cloning into '/var/lib/mock/f40-build-2326590-58839/root/chroot_tmpdir/scmroot/spacebar'...
$ git fetch origin 3800f59f11c7064021c4bc4513d866bba57a3d40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spacebar
 * [new ref]         3800f59f11c7064021c4bc4513d866bba57a3d40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3800f59 replace LicenseRef-KDE-Accepted-* licenses