Merge branch 'main' into feat/printer-agent-isolation

src/libslic3r/AppConfig.cpp

@@ -887,7 +887,7 @@ std::string AppConfig::load()
                 }
             }
         }
-    } catch(std::exception err) {
+    } catch(const std::exception &err) {
         BOOST_LOG_TRIVIAL(info) << format("parse app config \"%1%\", error: %2%", AppConfig::loading_path(), err.what());
 
         return err.what();