$ git clone -n https://src.fedoraproject.org/rpms/xenlism-wildfire.git /var/lib/mock/f41-build-side-1-2763315-31920/root/chroot_tmpdir/scmroot/xenlism-wildfire
Cloning into '/var/lib/mock/f41-build-side-1-2763315-31920/root/chroot_tmpdir/scmroot/xenlism-wildfire'...
$ git fetch origin 425036c7ea95d706b109fb4004f6c0a3bb4acfd1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xenlism-wildfire
 * [new ref]         425036c7ea95d706b109fb4004f6c0a3bb4acfd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 425036c convert GPLv3+ license to SPDX