[DOCS] Add hint to EXT:redirects regarding LinkHandler

Using constants in the LinkHandler TSConfig does not work in the
redirects module.

Resolves: #103205
Releases: main, 12.4, 11.5
Change-Id: I29dda248c5e80e077d53c8ecead9fb29fd041f76
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/84825


Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/redirects/Documentation/KnownProblems/Index.rst

@@ -4,6 +4,18 @@
 Known problems
 ==============
 
-For known problems, please refer to the
+.. _usagePitfallsConstants:
+
+Problem with constants in LinkHandler TSConfig
+==============================================
+
+It is important, that the `storagePid` is hard coded in the LinkHandler Page
+TSConfig, because using constants, e.g. from the site configuration, won't work
+here. :ref:`More details <t3coreapi:linkhandler-pagetsconfig>`
+
+Other known problems
+====================
+
+For more known problems, please refer to the
 `open issues for "Redirect Handling"
 <https://forge.typo3.org/projects/typo3cms-core/issues?utf8=✓&set_filter=1&f[]=category_id&op[category_id]==&v[category_id][]=1687&f[]=status_id&op[status_id]=o&f[]=&c[]=tracker&c[]=status&c[]=priority&c[]=subject&c[]=assigned_to&c[]=category&c[]=fixed_version&c[]=cf_7&group_by=&t[]=>`__