title: Angular ng-tag- input max-tag not working
body: <p>I want to restrict some fixed tags then after it not able to add new tags</p>
  
  <pre><code>&lt;tags-input ng-model="searchTerm"
              display-property="Name" 
              add-from-autocomplete-only="true"
              replace-spaces-with-dashes='false'
             max-tags='4'
          placeholder="Search option"
            &gt;
      &lt;auto-complete source="loadTags($query)" min-length='3'&gt;&lt;/auto-complete&gt;
  </code></pre>
  
  <p>i have added ng-tag-input js and also do all needful changes what is the problem for max tag?
      </p>