Maximum number of sections selected

Issue: Maximum number of sections selected. You need to deselect 1 section. (Limit: 10 sections per article).

1. Edit an article
2. Add sections - as a test, I chose 10 as that is the maximum limit
3. Click Done

The error pop-up appeared on the screen stating I had to deselect a section as 10 is the limit. I can not add an article to 10 sections. This appears to be a bug. If I deselect 1, it means I can only add an article to 9 sections. To get around this, if you leave it at 9, click Done, then click the + button to add a section, you can then add the 10th section.