escapeJqueryIdSelector(): Also escape dot `.`

javascript/src/Utils.js

@@ -14,6 +14,6 @@ var QfqNS = QfqNS || {};
     'use strict';
 
     n.escapeJqueryIdSelector = function (idSelector) {
-        return idSelector.replace(/(:)/, "\\$1");
+        return idSelector.replace(/(:|\.)/, "\\$1");
     };
 })(QfqNS);
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