$ git clone -n https://src.fedoraproject.org/rpms/kquickimageeditor.git /var/lib/mock/f40-build-2126187-50780/root/chroot_tmpdir/scmroot/kquickimageeditor
Cloning into '/var/lib/mock/f40-build-2126187-50780/root/chroot_tmpdir/scmroot/kquickimageeditor'...
$ git fetch origin 945dad1607de84d13873732f1e3f12f838dc48e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kquickimageeditor
 * [new ref]         945dad1607de84d13873732f1e3f12f838dc48e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 945dad1 0.3.0