Prevent exception while creating dynasties when a converter-generated…

… mod is selected as one of the CK3 mods (#2070) #patch

Sentry event ID: e8422b6133144fa78a9047b602794072

ImperatorToCK3/CK3/Dynasties/DynastyCollection.cs

@@ -78,7 +78,7 @@ private void CreateDynastiesForCharactersFromMinorFamilies(Imperator.World irWor
 
 			// Neither character nor their father have a dynasty, so we need to create a new one.
 			var newDynasty = new Dynasty(ck3Character, irFamilyName, irWorld.CulturesDB, irLocDB, ck3LocDB, date);
-			Add(newDynasty);
+			AddOrReplace(newDynasty);
 			++createdDynastiesCount;
 		}