Search highlighting fails if page uses the ItemList macro

[UlrichB22]

When running a search e.g. for "itemlist" and opening the item help-en/MoinWikiMacros from the search results
(help-en/MoinWikiMacros?regex=itemlist) I am getting the following traceback in the server log:

2024-11-20 14:03:46,157 INFO moin.signalling.log:20 item MoinWiki:help-en/MoinWikiMacros displayed
2024-11-20 14:03:46,824 ERROR moin.items.content:316 An exception happened in _render_data (error_id = 855960e6-f8d1-4c11-b7a8-c793f7222c7b ):
Traceback (most recent call last):
  File "/mypath/src/moin/items/content.py", line 305, in _render_data
    doc = self._expand_document(doc)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mypath/src/moin/items/content.py", line 295, in _expand_document
    doc = highlight_conv(doc)
          ^^^^^^^^^^^^^^^^^^^
  File "/mypath/src/moin/converters/highlight.py", line 60, in __call__
    self.recurse(tree)
  File "/mypath/src/moin/converters/highlight.py", line 48, in recurse
    self.recurse(child)
  File "/mypath/src/moin/converters/highlight.py", line 48, in recurse
    self.recurse(child)
  File "/mypath/src/moin/converters/highlight.py", line 48, in recurse
    self.recurse(child)
  [Previous line repeated 5 more times]
  File "/mypath/src/moin/converters/highlight.py", line 34, in recurse
    if elem.tag.uri == moin_page.namespace:
       ^^^^^^^^
AttributeError: 'CompositeName' object has no attribute 'tag'

Additionally in help-en/MoinWikiMacros the namespace is missing for some ItemList examples with the item "OtherTextItems".