Fix warnings

client/widgets/CArtifactHolder.cpp

@@ -250,7 +250,7 @@ void CHeroArtPlace::setArtifact(const CArtifactInstance * art)
 
 void CHeroArtPlace::addCombinedArtInfo(std::map<const CArtifact*, int> & arts)
 {
-	for(const auto combinedArt : arts)
+	for(const auto & combinedArt : arts)
 	{
 		std::string artList;
 		text += "\n\n";

client/widgets/CArtifactsOfHeroAltar.cpp

@@ -99,7 +99,7 @@ void CArtifactsOfHeroAltar::deleteFromVisible(const CArtifactInstance * artInst)
 	{
 		if(artInst->canBeDisassembled())
 		{
-			for(const auto part : dynamic_cast<const CCombinedArtifactInstance*>(artInst)->constituentsInfo)
+			for(const auto & part : dynamic_cast<const CCombinedArtifactInstance*>(artInst)->constituentsInfo)
 			{
 				if(part.slot != ArtifactPosition::PRE_FIRST)
 					getArtPlace(part.slot)->setArtifact(nullptr);