fix for scene merging with custom components when one of the scenes didn't register the type

WickedEngine/wiScene.cpp

@@ -995,6 +995,8 @@ namespace wi::scene
 	{
 		for (auto& entry : componentLibrary.entries)
 		{
+			if (other.componentLibrary.entries.count(entry.first) == 0)
+				continue;
 			entry.second.component_manager->Merge(*other.componentLibrary.entries[entry.first].component_manager);
 		}
 	}

WickedEngine/wiVersion.cpp

@@ -9,7 +9,7 @@ namespace wi::version
 	// minor features, major updates, breaking compatibility changes
 	const int minor = 71;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 764;
+	const int revision = 765;
 
 	const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);