$ git clone -n https://src.fedoraproject.org/rpms/e3.git /var/lib/mock/f41-build-3150586-40566/root/chroot_tmpdir/scmroot/e3
Cloning into '/var/lib/mock/f41-build-3150586-40566/root/chroot_tmpdir/scmroot/e3'...
$ git fetch origin 748ada9702eeb85a9e9f458649391261285d3880:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/e3
 * [new ref]         748ada9702eeb85a9e9f458649391261285d3880 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 748ada9 convert GPLv2 license to SPDX