Form customization: when disabling regions Document tab has no active state.

[joeke]

When disabling regions in a Form customization set, for example modx-resource-access-permissions, then saving it and reloading the Resource create/update page, the default Document tab does not have the active state/styling.

Step to reproduce

Create a new Form customization set for 'Create and Edit resource', and disable one of the regions, for example modx-resource-access-permissions. Then go to a Resource create/update page, and see that the Document tab does not have the active tab styling.

Observed behavior

Document tab has no active state:

Expected behavior

Document tab should have the active state

Environment

MODX 3.0.3, nginx, PHP 7.4, mysql 5.7