Issue: Can't Save Area if [No Prefix] is Disabled

Can you clarify #2? There are at least two things I think you could mean.

Case 1:
- Area requires 'Prefix-A' but does not allow [No Prefix]
- Area title has no prefix
- Editing Area but leaving area title with no prefix shows prefix_not_allowed error because [No Prefix] is not allowed

Case 2:
- Area requires 'Prefix-A'
- Attempting to set area title as 'Prefix-A:Area' shows prefix_not_allowed error

Requiring a prefix in an area shouldn't require the prefix on the area itself, so I think it's a bug. If I create a new area, and the only prefix I allow in it is "SMBC", then I should not have to use that prefix on the area itself, only pages in that area. It should however, require that all child areas require that prefix. But this is not possible.

Even if I put "SMBC:" before the title, I still get the error.

Both case 1 and 2 are true. Case 2 I only tried on a subarea.

It is a bug. By current design, the area is supposed to have no prefix. If there is an error when saving that says it's not allowed to have no prefix, then it's a bug, if only because there's no other choice. I will see if a simple code change will resolve Case #1.

I believe case #2 is as designed for regular pages (in case a user tries to circumvent your prefix rules), but should not be applied to areas either since the title is admin-set.

Please try now. I've made some changes.

Pretty sure this is fixed now, so marking it Fixed. If you still have issues, let me know.