Reply in bbcode mode gives error about "autofocus" in the console

editor-compiled.js?_v=583d5431:1063 Uncaught TypeError: a.bbCode.getTextArea(...).autofocus is not a function at b.scrollToCursor (editor-compiled.js?_v=583d5431:1063:493) at Object.focusEditor (core-compiled.js?_v=583d5431:60:313) at b.click (message.min.js?_v=583d5431:9:294) at b._onEvent (core-compiled.js?_v=583d5431:189:278) at a (core-compiled.js?_v=583d5431:187:391) at HTMLDocument.<anonymous>...