Issue description
After loading a savegame of an edited map. The mine status is not loaded. All the mines look as if nothing had been mined.
Reproduction steps
1.Loading save file "Kalti Industry>Test 1.1" map Salvara Isla.
2.After loading, see the map.
3.All mine mining areas look unused.This refers to the two mines for coal and iron.

Game version and build number
v0.6.3a b333
Operating system
Windows
Attachments
20240428190456_1.jpg, 24-04-28_03-10-autosave.save, 24-04-28_03-25-autosave.save, 24-04-28_03-40-autosave.save, 24-04-28_03-55-autosave.save, 24-04-28_04-10-autosave.save, 24-04-28_04-25-autosave.save, Test 1.1.save, SlavaraIslav2_v2.map
Files not imported: 24-04-28_03-10-autosave.save, 24-04-28_03-25-autosave.save, 24-04-28_03-40-autosave.save, 24-04-28_03-55-autosave.save, 24-04-28_04-10-autosave.save, 24-04-28_04-25-autosave.save, Test 1.1.save
