Cms: v3.1 doesn't honor custom sidebar ordering and headings

[mattstein]

Description

When updating an existing Craft 3 site to v3.1.1, custom sidebar ordering and headings are lost:

Steps to reproduce

1. Start with a Craft 3.0.37 site that has custom sidebar headings.
2. composer update to 3.1.1.
3. Visit _Entries_ and note reordered sidebar items with missing headings. (Mine had one empty heading where previously there were three non-empty ones.)

Additional info

• Craft version: 3.0.? → 3.1.1
• PHP version: 7.3.0, 7.2.12
• Database driver & version: MySQL 5.5.5

[jsunsawyer]

I posted a similar issue and noted the sidebar ordering as well. It may have been fixed. See: https://github.com/craftcms/cms/issues/3659

[angrybrad]

Fixed in https://github.com/craftcms/cms/commit/dee6f88fb404142f23f5c14055cd5381fa04a009

[brandonkelly]

3.1.2 is out now with the fix for this.