Unable to edit page's title

Issue Summary

Changing the title of certain pages fails and it reverts to the old name. When we edit the page again, we see the old page's title.

Further tests reveal that this happens when there are pages with "content_status='draft' and creationdate=null".

Steps to Reproduce

We can confirm this issue affects you by running the following SQL query:

select * from content where content_status = 'draft' and creationdate is null;

Expected Results

Able to edit the page's title

Actual Results

Changing the title of certain pages fails and it reverts to the old name. When we edit the page again, we see the old page's title.

Workaround

We can add a random entry in the creationdate field for pages with content_status=draft:

update content set creationdate='2020-01-25 11:05:32' where content_status = 'draft' and creationdate is null;