$ git clone -n https://src.fedoraproject.org/rpms/xfce4-terminal.git /var/lib/mock/f41-build-side-1-2826618-33435/root/chroot_tmpdir/scmroot/xfce4-terminal
Cloning into '/var/lib/mock/f41-build-side-1-2826618-33435/root/chroot_tmpdir/scmroot/xfce4-terminal'...
$ git fetch origin 7a1d82130b5e3fcf03c2d1aeefda136e440ad7c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-terminal
 * [new ref]         7a1d82130b5e3fcf03c2d1aeefda136e440ad7c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a1d821 convert GPLv2+ license to SPDX