Bug[Document Editor]: Error on empty title

[pranshuchittora]

Uncaught (in promise) Error: Node dont have an ix
    at HTMLElement.getBackwardNode (uprtcl-documents.es5.js:3790)
    at HTMLElement._callee27$ (uprtcl-documents.es5.js:4121)
    at tryCatch (runtime.js:68)
    at Generator.invoke [as _invoke] (runtime.js:299)
    at Generator.prototype.<computed> [as next] (runtime.js:121)
    at asyncGeneratorStep (uprtcl-documents.es5.js:503)
    at _next (uprtcl-documents.es5.js:505)
    at eval (uprtcl-documents.es5.js:505)
    at new Promise (<anonymous>)
    at HTMLElement.eval (uprtcl-documents.es5.js:505)