Ensure we don't try to get localized values for null objectnames

(cherry picked from commit b00c7729cc)

Sources/Plasma/PubUtilLib/plResMgr/plResManager.cpp

@@ -536,7 +536,7 @@ inline plKeyImp* IFindKeyLocalized(const plUoid& uoid, plRegistryPageNode* page)
 	const char* objectName = uoid.GetObjectName();
 
 	// If we're running localized, try to find a localized version first
-	if (plLocalization::IsLocalized())
+	if (objectName != nullptr && plLocalization::IsLocalized())
 	{
 		char localName[256];
 		if (plLocalization::GetLocalized(objectName, localName))