$ git clone -n https://src.fedoraproject.org/rpms/python-specfile.git /var/lib/mock/f39-build-1616001-38643/root/chroot_tmpdir/scmroot/python-specfile
Cloning into '/var/lib/mock/f39-build-1616001-38643/root/chroot_tmpdir/scmroot/python-specfile'...
$ git fetch origin ce94f144fef2f047d2de684cd3846c5c8081228a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-specfile
 * [new ref]         ce94f144fef2f047d2de684cd3846c5c8081228a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce94f14 [packit] 0.24.0 upstream release