* Make falling liquid source nodes replace flowing nodes
This makes falling liquid source nodes in group:float replace
flowing nodes on the ground instead of being placed above
the flowing node.
* Make flowing liquids "fall through" for source nodes
This makes liquids in float and falling_node groups fall through
flowing liquid nodes instead of being supported by them in the air.
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Co-authored-by: SmallJoker <SmallJoker@users.noreply.github.com>
Co-authored-by: Lars Mueller <appgurulars@gmx.de>
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