undef ToString fix

IDE/src/IDEApp.bf

@@ -6588,7 +6588,8 @@ namespace IDE
 							nextTab = checkTab;
 	                });
 			}
-			else {
+			else
+			{
 				nextTab = tabbedView.GetActiveTab();
 			}
 

IDEHelper/Backend/BeModule.cpp

@@ -1356,6 +1356,7 @@ void BeDumpContext::ToString(StringImpl& str, BeValue* value, bool showType, boo
 			str += " ";
 		}
 		str += "undef";
+		return;
 	}
 
 	if (auto constant = BeValueDynCast<BeCastConstant>(value))