"Edit content" icon(s) disappear from component after adding new component from side-nav

Steps to reproduce:

1. Go to HAP channel.
2. Go to content menu
3. "Edit content" icons are displayed for all the documents inside ContentList component.
4. Now enter into edit mode.
5. Open side-nav and drag a new component from side-nav.
6. Save the new component.
7. go to view mode.
8. Notice all the "Edit Content" icons are removed from the component

Note:-->Only one icon is shown at the top left side of the page
Expected:-->Icons should remain on page even after adding new component from side-nav