$ git clone -n https://src.fedoraproject.org/rpms/qca-qt4.git /var/lib/mock/f41-build-side-1-2674989-29291/root/chroot_tmpdir/scmroot/qca-qt4
Cloning into '/var/lib/mock/f41-build-side-1-2674989-29291/root/chroot_tmpdir/scmroot/qca-qt4'...
$ git fetch origin f91e7129c54c06b193449794ac081f041b191a8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qca-qt4
 * [new ref]         f91e7129c54c06b193449794ac081f041b191a8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f91e712 convert license to SPDX