Issue Summary

When inserting heading on a page, heading links doesn't update when the Heading Text is updated.

Steps to Reproduce

1. Navigate to the page and scroll down to the heading.
2. Hover over the heading to reveal the link icon to the left of the heading.
3. Click the link icon to copy the link.
4. Navigate to and edit the page where you want to link to the heading.
5. Paste the URL in the link tool pop-up and give it a more friendly name if desired.
6. Navigate to the same page and heading in Step 1. Edit the Heading Text.

Expected Results

Heading Links should update when the Heading Text is updated.

Actual Results

Heading Links doesn't update when the Heading Text is updated. This will result in broken heading links.