Colliding deconstruction/construction planners: Fish & Landfill

[vangrunz]

Scenario:
There's a Lake that you want to Landfill using a Blueprint using Construction Robots.

Issue:
In this Lake there's a lot of Fish you'd like to catch before the water it lives in is land-filled. Following the Wiki, Fish is only generated once with the map and will neither despawn nor respawn (without using certain mods).

Unfortunately, it seems to be ranD00MiZed™ if first the Landfill kicks in or harvesting the Fish. Changing the Water Tile to Land before harvesting the Fish that is in destroys it.

Solution:
Internal priorization to catch Fish before filling its tile if both conditions (a landfill construction order & a catch fish deconstruction order in the same tile/area) are true.