Clicking the delete button on a table in a new template does not delete the table

Issue Summary

After creating a new page from a template, tables cannot be deleted using the delete button.

Steps to Reproduce

1. Create a new page using a template that includes tables (e.g. "Product requirements")
2. Click on the table to show the "Table options"/trash icon dialog:
   
3. Click the trash can icon

Expected Results

The table should be deleted.

Actual Results

The table is not deleted

Workaround

Once you publish the page for the first time, the tables can be deleted on subsequent edits.