import Collapse from 'ember-bootstrap/components/base/bs-collapse';

export default Collapse.extend({
  classNameBindings: ['collapse', 'showContent:show', 'collapsing']
});

import Collapse from 'ember-bootstrap/components/base/bs-collapse';

export default Collapse.extend({
  classNameBindings: ['showContent:show']
});

Remove redundant class name bindings in BS4.