Unable to set a Single as the homepage if another entry was previously the homepage

[rungta]

Description

I had made an entry in a "Pages" section (with versioning enabled) the homepage by setting it’s URI to __home__. Later on, I decided to create a new Single for the homepage. Craft threw an error saying the site "already had a homepage". Fair enough, so I went and changed the current homepage’s URI to something else (so it was no longer the homepage, verified in the front-end), but Craft continued to complain about the site already having a homepage. I went ahead and deleted the entry altogether and tried again. Still got the error. Only when I ran the garbage collector and removed all traces of the previous homepage entry was I able to create my new Single and mark that to be the homepage.

Steps to reproduce

1. Create a section with versioning enabled
2. Create an entry in this section and set it’s URI to __home__
3. Now change it’s URI to something else
4. Try to create a new Single and leave the URI field blank

Additional info

• Craft version: 3.2.6
• PHP version: 7.1.19

[brandonkelly]

Thanks for reporting! Just fixed this for the next release.