'fill [coords] water replace air' waterlogs waterloggables but 'fill [coords] air replace water' does not unwaterlog them

The fill command 'fill [coords] water replace air' command will waterlog stairs, slabs etc but the inverse of that 'fill [coords] air replace water' leaves those blocks waterlogged.

This was reported twelve months ago on the BE tracker and has been ignored.

Either the fill command does waterlog and de-waterlog or it does neither, not half and half.

Please, be consistent with this stuff.