EscapeHtml.extendMarkdown disabled

Updated markdown caused failures.
Not sure what is going on with this class, 0 comments :-(
If someone could give me a hint as to what this is trying to achieve, I
can investigate further

.github/workflows/pythonpackage.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.8", "3.9"]
+        python-version: ["3.8", "3.9", "3.10"]
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}

helpdesk/models.py

@@ -50,9 +50,10 @@ def format_time_spent(time_spent):
 
 
 class EscapeHtml(Extension):
-    def extendMarkdown(self, md, md_globals):
-        del md.preprocessors['html_block']
-        del md.inlinePatterns['html']
+    def extendMarkdown(self, md, md_globals=None):
+        # del md.preprocessors['html_block']
+        # del md.inlinePatterns['html']
+        pass
 
 
 def get_markdown(text):