DGN95 UTM systems show incorrect bounds

[matthewhanson]

Hi, I'm not sure if this is indicative of a more general problem, but the UTM zones using the DGN95 datum all show bounds of the DGN95 area, whereas they should show the intersection of the DGN95 extent with the UTM zone extent.

DGN95 is a datum covering Indonesia, and all of the coordinate systems that use it show the same area.

See DGN95 here:
http://epsg.io/4898

compared to the DGN95 / UTM 50S zone, which should only be the DGN95 region that also falls within the UTM 50S zone:
http://epsg.io/23880