openproject/frontend/app/templates/work_packages/activities/_revision.html

<div class="work-package-details-activities-activity-contents">
  <div class="comments-number">
    <span ui-sref="work-packages.list.details.activity.details({ activity_no: activityNo })">
      <a name="{{ activityNo }}"
         ng-bind="'#' + activityNo"
         ng-href="#{{ activityNo }}"></a>
    </span>
  </div>
  <div ng-if="userAvatar">
    <img class="avatar" ng-src="{{ userAvatar }}" alt="Avatar" title="{{userName}}" />
  </div>
  <span class="user" ng-if="userActive"><a ng-href="{{ userPath(userId) }}" name="{{ currentAnchor }}" ng-bind="userName"></a></span>
  <span class="user" ng-if="!userActive">{{ userName }}</span>
  <span class="revision-activity--revision-link date"></span>
  <span class="user-comment wiki">
    <span class="message" ng-bind-html="message"/>
  </span>
</div>