Fix collapse reference id
<div class="panel-heading">
<h4 class="panel-title">
<span class="glyphicon glyphicon glyphicon-user"></span>
- <a data-toggle="collapse" class="accordion-toggle" data-parent="#accordion" href="#filter">&nbsp;Shared by</a></h4>
+ <a data-toggle="collapse" class="accordion-toggle"
+ data-parent="#accordion" href="#filter-shared-by">&nbsp;Shared by</a>
+ </h4>
</div>
<div id="filter-shared-by" class="facet-list panel-collapse collapse in">
<div class="panel-body">
