Documentation says:
"It will also protect existing structures. Any piece that is destroyed (not removed by the Hammer) will be replaced with a plan for that same piece in the same place!"
This worked fine in the past.
In the current Version (0.18.2) with Dependencies Jotunn 2.24.3 and HookGenPatcher 0.0.4 it does not work anymore.
Started a new map and char, devcommands on, godmin, nocost, spawned a hammer and then:
build plantotem
build 3 wood walls over the others
remove the lowest wall
expectation: the 2 wood walls on top crash and the plan totem creates a plan of them instead
happening: the 2 wood walls on top crash - no plan is set up