For resis, this is fixed in the geologist-messages branch. The cause for the bushes is in the "grow" program for immovables (logic/map_objects/immovables.cc:933). nullptr is set as owner when something grows into a larger version of itself.
For resis, this is fixed in the geologist-messages branch. map_objects/ immovables. cc:933) . nullptr is set as owner when something grows into a larger version of itself.
The cause for the bushes is in the "grow" program for immovables (logic/