$ git clone -n https://src.fedoraproject.org/rpms/kf5-kxmlgui.git /var/lib/mock/f40-build-2556741-62055/root/chroot_tmpdir/scmroot/kf5-kxmlgui
Cloning into '/var/lib/mock/f40-build-2556741-62055/root/chroot_tmpdir/scmroot/kf5-kxmlgui'...
$ git fetch origin 22f0be05cdd9e73822d8a53855dfc00034572cfa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kxmlgui
 * [new ref]         22f0be05cdd9e73822d8a53855dfc00034572cfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22f0be0 5.115.0