Fix #445: don't auto-detect hatches for airlocks if there's already a…

… hatch connected to it

FreeIva/InternalModules/InternalModuleFreeIva.cs

@@ -497,6 +497,7 @@ void OnLoad_Finalize()
 			Part part = ModuleFreeIva.GetPartPrefabForInternal(internalModel.internalName);
 
 			List<FreeIvaHatch> hatches = new List<FreeIvaHatch>();
+			List<string> boundAirlockNames = new List<string>();
 
 			foreach (var prop in internalModel.props)
 			{
@@ -505,6 +506,11 @@ void OnLoad_Finalize()
 				{
 					var hatchConfig = prop.GetComponent<HatchConfig>();
 
+					if (hatch.airlockName != string.Empty)
+					{
+						boundAirlockNames.Add(hatch.airlockName);
+					}
+
 					if (hatchConfig != null || hatch.cutoutTargetTransformName != string.Empty)
 					{
 						AddPropCut(hatch);
@@ -576,6 +582,8 @@ void OnLoad_Finalize()
 					float bestDistanceSquared = 1; // we're pretty generous with positioning (compared to attachnodes) because these don't need to line up perfectly
 					FreeIvaHatch bestHatch = null;
 
+					if (boundAirlockNames.Contains(airlockNames[airlockIndex])) continue;
+
 					foreach (var hatch in hatches)
 					{
 						if (hatch.airlockName != string.Empty) continue;