$ git clone -n https://src.fedoraproject.org/rpms/mod_qos.git /var/lib/mock/f41-build-1302970-23490/root/chroot_tmpdir/scmroot/mod_qos
Cloning into '/var/lib/mock/f41-build-1302970-23490/root/chroot_tmpdir/scmroot/mod_qos'...
$ git fetch origin 12e910405815d172bd836a4093bf949f1ea527d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mod_qos
 * [new ref]         12e910405815d172bd836a4093bf949f1ea527d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12e9104 update to 11.75