HTG Slice with Plane filter breaks colormapping when adjusting plane

Tested with ParaView master 43b0c7f9, MacOS 10.13.6

To recreate:

Create a random HTG source: Sources -> DataObjects -> HyperTreeGrid (Random) -> Apply
Apple Slice filter: Filters -> Hyper Tree Grid -> Hyper Tree Grid - Slice with Plane -> Apply
Change Representation to "Surface with edges" and color by "Level"

First go:

In the Properties tab, change the plane parameters. I changed to 0,1,0,0 from 1,0,0,0 -> Apply

Second go:

Third go:

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