corrected fix for crash when removing demo mod of #992

angelsrefining/control.lua

@@ -4,6 +4,8 @@ local ground_water_pump = require("src.ground_water_pump")
 local sea_pump = require("src.sea-pump")
 
 -- initialisation
+local on_configuration_changed = require("src.mod-config")
+script.on_configuration_changed(on_configuration_changed)
 script.on_init(function()
   starting_items:on_init()
   sea_pump:on_init()

angelsrefining/src/mod-config.lua

@@ -0,0 +1,28 @@
+local sea_pump = require("src.sea-pump")
+
+return function(configuration_data)
+  local mod_changes = configuration_data.mod_changes["angelspump"]
+  if mod_changes and mod_changes.new_version ~= (mod_changes.old_version or "") then
+    log(
+      string.format(
+        "Updating angelspump from version %q to version %q",
+        mod_changes.old_version or "nil",
+        mod_changes.new_version
+      )
+    )
+
+    --------------------------------------------------
+    -- Sea pump script-----                         --
+    --------------------------------------------------
+    if not global.SP_data then
+      log("Updating sea pump from version 0 to latest version.")
+      sea_pump:on_init()
+    end
+
+    if global.SP_data.version == 1 then
+      log("Updating sea pump from version 1 to version 2.")
+      global.SP_data["entity_modules_data_tag"] = "sea-pump-modules_request" -- the tag name where the data is stored in the entity
+      global.SP_data.version = 2
+    end
+  end
+end