$ git clone -n https://src.fedoraproject.org/rpms/kddockwidgets.git /var/lib/mock/f41-build-847256-163867/root/chroot_tmpdir/scmroot/kddockwidgets
Cloning into '/var/lib/mock/f41-build-847256-163867/root/chroot_tmpdir/scmroot/kddockwidgets'...
$ git fetch origin 900e400c0203f7f675bbc80f05ed99c4074ffc45:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kddockwidgets
 * [new ref]         900e400c0203f7f675bbc80f05ed99c4074ffc45 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 900e400 Rebuild (qt5)