geometry
SRID=4004;MULTIPOINT((1.0 5.0), (3.0 4.0))
----

clip xmin=10 ymin=10 xmax=20 ymax=20
----
55 => 13 (srid: 4004)

clip xmin=0 ymin=0 xmax=10 ymax=10
----
55 => 55 (srid: 4004)

geometry
MULTIPOINT((1.0 5.0), (3.0 4.0))
----

clip xmin=10 ymin=10 xmax=20 ymax=20
----
51 => 9 (srid: 0)

clip xmin=0 ymin=0 xmax=10 ymax=10
----
51 => 51 (srid: 0)


clip xmin=10 ymin=0 xmax=0 ymax=10
----
geos error: IllegalArgumentException: Clipping rectangle must be non-empty
