diff --git a/mapeditor/inspector/inspector.cpp b/mapeditor/inspector/inspector.cpp
index d489cc727..0b096182b 100644
--- a/mapeditor/inspector/inspector.cpp
+++ b/mapeditor/inspector/inspector.cpp
@@ -370,7 +370,7 @@ void Inspector::updateProperties(CGMine * o)
 	
 	addProperty("Owner", o->tempOwner, false);
 	addProperty("Resource", o->producedResource);
-	addProperty("Productivity", o->producedQuantity, false);
+	addProperty("Productivity", o->producedQuantity);
 }
 
 void Inspector::updateProperties(CGResource * o)
diff --git a/mapeditor/mapcontroller.cpp b/mapeditor/mapcontroller.cpp
index ea94d4739..e768b3130 100644
--- a/mapeditor/mapcontroller.cpp
+++ b/mapeditor/mapcontroller.cpp
@@ -204,6 +204,15 @@ void MapController::repairMap(CMap * map) const
 				art->storedArtifact = a;
 			}
 		}
+		//fix mines 
+		if(auto * mine = dynamic_cast<CGMine*>(obj.get()))
+		{
+			if(!mine->isAbandoned())
+			{
+				mine->producedResource = GameResID(mine->subID);
+				mine->producedQuantity = mine->defaultResProduction();
+			}
+		}
 	}
 }
 
diff --git a/mapeditor/mapsettings/modsettings.cpp b/mapeditor/mapsettings/modsettings.cpp
index 5926542e5..330cb9c82 100644
--- a/mapeditor/mapsettings/modsettings.cpp
+++ b/mapeditor/mapsettings/modsettings.cpp
@@ -78,9 +78,8 @@ void ModSettings::initialize(MapController & c)
 		auto pieces = qmodName.split(".");
 		assert(pieces.size() > 1);
 
-		QString qs;
-		for(int i = 0; i < pieces.size() - 1; ++i)
-			qs += pieces[i];
+		pieces.pop_back();
+		auto qs = pieces.join(".");
 
 		if(addedMods.count(qs))
 		{