Sync from quickmods

gui/dialogs/ModEditDialogCommon.cpp

@@ -4,7 +4,7 @@
 
 bool lastfirst(QModelIndexList &list, int &first, int &last)
 {
-	if (!list.size())
+	if (list.isEmpty())
 		return false;
 	first = last = list[0].row();
 	for (auto item : list)
@@ -37,4 +37,4 @@ void showWebsiteForMod(QWidget *parentDlg, Mod &m)
 			QObject::tr("The mod author didn't provide a website link for this mod."),
 			QMessageBox::Warning);
 	}
-}
+}