fix for #7516

[a-recknagel]

Bugfix

Subject: Enable secure object inspection in autodoc'd modules.

Purpose

Inspecting objects in user modules can be risky if they raise errors in their __getattr__ implementations. One such case is the flask.request proxy which will complain about not being in a valid context if is accessed in any way and throws a RuntimeError.

Detail

I replaced the getattr call with the existing safe_getattr.

Relates

#7516

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Same as #7518 based from a different branch, because I was not clever enough to rebase between branches that can't be fast-forwarded.

[a-recknagel]

ping @tk0miya , with the changes you requested. I tested it locally and the fix still works.

[tk0miya]

Thanks!