allow some regex chars

util/Util.js

@@ -128,7 +128,7 @@ class Util {
      * @return {string} The sanitised expression
      * @memberof Util
      */
-    static sanitiseRegex(input, allowed = ['?', '\\', '(', ')', '|']) {
+    static sanitiseRegex(input, allowed = ['?', '\\', '(', ')', '|', '\\[', '\\]', '.']) {
         if (!input) throw new Error('Missing input');
         const reg = new RegExp(`[${this.regChars.filter((char) => !allowed.includes(char)).join('')}]`, 'gu');
         return input.replace(reg, '\\$&');