Editing a page with indented text strips the indentations

Summary

When editing any page with text that has been indented with the indentation format tool, any previous indentations are removed and must be re-added manually every time the page is edited.

Environment

Cloud

Steps to Reproduce

1. create a page with text (I suggest some lorem ipsum)
2. highlight some of the text and then hit the "indent" button in the toolbar to indent the text
3. Publish the page (you will see the indented text is still indented.
4. Edit the page.

Expected Results

The Indentations are preserved and appear in the editor.

Actual Results

All text that was indented this way will no longer show the indents.
Publishing the page like this will remove the indentations on all the text indented this way.

Notes

N/A

Workaround

There is no workaround at this time.