$ git clone -n https://src.fedoraproject.org/rpms/qca.git /var/lib/mock/f42-build-3426991-45200/root/chroot_tmpdir/scmroot/qca
Cloning into '/var/lib/mock/f42-build-3426991-45200/root/chroot_tmpdir/scmroot/qca'...
$ git fetch origin 18628d7c1cf921a51548707687871c72ef4985a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qca
 * [new ref]         18628d7c1cf921a51548707687871c72ef4985a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18628d7 2.3.10