$ git clone -n https://src.fedoraproject.org/rpms/lximage-qt.git /var/lib/mock/f41-build-side-1-2828553-33537/root/chroot_tmpdir/scmroot/lximage-qt
Cloning into '/var/lib/mock/f41-build-side-1-2828553-33537/root/chroot_tmpdir/scmroot/lximage-qt'...
$ git fetch origin 555d17f8b62c0b1f76926c7314252a49d718e930:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lximage-qt
 * [new ref]         555d17f8b62c0b1f76926c7314252a49d718e930 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 555d17f 2.0.1