Fix control-panel property widgets hidden by pat-autotoc (#154)

[jensens]

Fixes #154.

Problem

After upgrading to 2.0.0rc1, the user/group property-mapping widgets are missing from the Plone control panel (they are present in the ZMI, and the data is intact).

Root cause

See the detailed analysis in #154. In short:

• The dict/array widgets render correct server-side HTML, but yafowil.widget.dict 2.0 wraps itself in a nested, legend-less <fieldset>.
• The new UX added pat-autotoc with section: fieldset, which turns every <fieldset> into a tab section — including those nested widget fieldsets — so they get hidden in the browser.
• The ZMI works because it has no pat-autotoc.

Fix

Scope the auto-TOC tabbing to the top-level section fieldsets only (server/users/groups/cache all carry class: formPanel):

-        pat-autotoc: "levels: legend; section: fieldset; className: autotabs"
+        pat-autotoc: "levels: legend; section: fieldset.formPanel; className: autotabs"

The nested widget fieldsets no longer match the section selector.

⚠️ Verification

This is a browser-side fix — the server-side HTML was already correct, so the existing Python/unit tests can't reproduce or prove it (they stay green either way). Please verify in a browser on an affected instance (the control panel should again show the User attribute aliases, User Property-Sheet Attributes, and the group equivalents). 240 unit/integration/doctest tests still pass.

Follow-up (not in this PR)

The form has both enableFormTabbing and pat-autotoc active — two tabbing mechanisms on the same form. Worth revisiting whether both are intended.

🤖 Generated with Claude Code

[erral]

With these changes the issue is resolved.

Users

Groups

[jensens]

@erral: What do you think, is it now 2.0.0 final ready or wait for more feedback?

[erral]

@jensens AFAICT and with the tests I have done in a client's site which uses this plugin with Active Directory, it works perfectly and a new version can be released.