$ git clone -n https://src.fedoraproject.org/rpms/gqrx.git /var/lib/mock/f38-build-722569-98831/root/chroot_tmpdir/scmroot/gqrx
Cloning into '/var/lib/mock/f38-build-722569-98831/root/chroot_tmpdir/scmroot/gqrx'...
$ git fetch origin 58ebd0aaae753f4fe038fe31a5dc604dff65b845:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gqrx
 * [new ref]         58ebd0aaae753f4fe038fe31a5dc604dff65b845 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58ebd0a New version