Index: sources/canbus/MessageInterpreter.cpp
===================================================================
diff -u -re961fc7bcdeba8ffab9c96da20244b07405f8f99 -ra5c75192af33a9284e4b4886df0c337ba6fcc9f9
--- sources/canbus/MessageInterpreter.cpp	(.../MessageInterpreter.cpp)	(revision e961fc7bcdeba8ffab9c96da20244b07405f8f99)
+++ sources/canbus/MessageInterpreter.cpp	(.../MessageInterpreter.cpp)	(revision a5c75192af33a9284e4b4886df0c337ba6fcc9f9)
@@ -667,7 +667,7 @@
     QString     category = Storage::Settings_Category_MessagesUnhandled;
     QStringList groups   = _Settings.groups(category);
     // DEBUG: qDebug() << groups;
-    for(const auto group: groups) {
+    for(const auto &group: qAsConst(groups)) {
         bool ok;
         quint16 id = QString(group).toUInt(&ok,16);
         if (!ok) continue;