[2.0.72] Destroying decals with "destroy-decoratives" trigger effect, destroys the decals, but keeps rendering them.

[DonBoobleone]

Context:
Made a Grenade with this effect:
{
type = "destroy-decoratives",
radius = 10,
from_render_layer = "decals",
to_render_layer = "decals",
include_soft_decoratives = false,
include_decals = true,
invoke_decorative_trigger = true,
decoratives_with_trigger_only = false,
repeat_count = 10000,
probability = 1
}

If repeat_count is low, it will not destroy all decorative-decals in the explosion radius, even this high, it can miss some.

Before tossing the grenade I check the decals around me with:
/c local p=game.player.position local a={{p.x-4,p.y-4},{p.x+4,p.y+4}} local decals=game.player.surface.find_decoratives_filtered{area=a,from_layer="decals",to_layer="decals"} local names={} for _,decal in pairs(decals) do local n=decal.decorative and decal.decorative.name or "NIL" if n then names[n]=true end end local keylist={} for name in pairs(names) do table.insert(keylist,name) end local out=table.concat(keylist,", ") game.print("Decal names ("..#decals.."): "..out)

Tossing 1 or more zen-grenades and rechecking the decals to confirm all of them are destroyed

The decals will be visible until:
- game is saved and reloaded
- an artificial tile like concrete is placed in the area.

- Tried other effects to trigger cleanup, like "damage-tile", create-smoke, invoke-tile trigger, but without success.

Using this command, the decals will be cleared without problems, and also they won't be rendered anymore: (Note, all decals will be destroyed consistently vs trigger effect which is inconsistent)
/c local p=game.player.position local a={{p.x-4,p.y-4},{p.x+4,p.y+4}} game.player.surface.destroy_decoratives{area=a, from_layer="decals", to_layer="decals", exclude_soft=true}

Video: https://youtu.be/SZd_ro4fk9w

Note for save file: Zen-grenade code exist in Zen-garden 4.2 (current live version) but require is commented out in datal.lua (will be released in 4.3)