[Bug]: Reference is linked to header instead to defined anchor

[brotkrueml]

Summary

If a header with the same name as an anchor on a separate page is available, and this anchor is referenced, the header of that page is linked instead the anchor on the separate page.

See, for example, here:
https://docs.typo3.org/m/typo3/reference-coreapi/12.4/en-us/ExtensionArchitecture/HowTo/Configuration.html#flexforms
There is a header "FlexForms", also a reference to FlexForms (in the admonition "See also) which references "flexforms".
On a separate page: https://docs.typo3.org/m/typo3/reference-coreapi/12.4/en-us/ApiOverview/FlexForms/Index.html
There is the anchor available.

But the header of the Configuration page is linked to, instead the anchor.

Code snippet that reproduces the problem

One page:

FlexForms
=========

:ref:`FlexForms <flexforms>`

Another page:

.. _flexforms:

=========
FlexForms
=========

Expected output

The ref "flexforms" is linked to the page with the anchor "flexforms".