$ git clone -n https://src.fedoraproject.org/rpms/photoqt.git /var/lib/mock/f41-build-side-1-2933404-35203/root/chroot_tmpdir/scmroot/photoqt
Cloning into '/var/lib/mock/f41-build-side-1-2933404-35203/root/chroot_tmpdir/scmroot/photoqt'...
$ git fetch origin 6b2415ad6b2b7ebc71ac109233dcb88625d16134:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/photoqt
 * [new ref]         6b2415ad6b2b7ebc71ac109233dcb88625d16134 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b2415a Update to 4.6