$ git clone -n https://src.fedoraproject.org/rpms/offlineimap.git /var/lib/mock/f41-build-side-2-python-2688559-30183/root/chroot_tmpdir/scmroot/offlineimap
Cloning into '/var/lib/mock/f41-build-side-2-python-2688559-30183/root/chroot_tmpdir/scmroot/offlineimap'...
$ git fetch origin 192bedd0c863ab5dce25eec69e6e13d9604f445c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/offlineimap
 * [new ref]         192bedd0c863ab5dce25eec69e6e13d9604f445c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 192bedd convert GPLv2+ license to SPDX