Description-field is showing [ ] in autocomplete list

[NarasinghaP]

@ghiden , I have not used description-field. But still it is showing [ ] in autocomplete list. HTML looks like this.

<div angucomplete-alt  id="ex2" placeholder="Uploaded By" maxlength="50" pause="100" selected-object="roleFilter" local-data="userList"
					 search-fields="username" title-field="username" minlength="1" input-class="form-control form-control-small"
					 match-class="highlight"></div>