Prevent CurrentRegionIndex out of range

In certain unpatched game data there's multiple pixels in Wrothgarian Mountains with bad POLITIC.PAK indices.
This is not present using DaggerfallGameFiles or DaggerfallSetup with POLITIC.PAK fix v2.
Added patch for known bad index value in Wrothgarian Mountains.
Any remaining out of range results are clamped to 0 rather than crash.

Assets/Scripts/Internal/PlayerGPS.cs

@@ -154,10 +154,24 @@ public int CurrentPoliticIndex
         /// </summary>
         public int CurrentRegionIndex
         {
-            get { if (currentPoliticIndex == 64)
-                    return 31; // High Rock sea coast
+            get {
+                // Determine region from current politic index
+                int result = 0;
+                if (currentPoliticIndex == 64)
+                    result = 31; // High Rock sea coast
                   else
-                    return currentPoliticIndex - 128; }
+                    result = currentPoliticIndex - 128;
+
+                // Patch known bad value to Wrothgarian Mountains
+                if (result == 105)
+                    result = 16;
+
+                // Clamp any out of range results to 0
+                if (result < 0 || result >= 62)
+                    result = 0;
+
+                return result;
+            }
         }
 
         /// <summary>