[SB05-065] lkql: Fix lkql_doc_class syntax check

Change-Id: I484c9cd8029dd0e2a4a16260005f40b0846a4def

Author: raph-amiard

user_manual/source/lkql_doc_class.py

@@ -106,6 +106,11 @@ def visit_literal_block(self, node) -> None:
             """
             Visit code blocks and check if they're valid LKQL code.
             """
+
+            # Don't check non lkql blocks
+            if node.attributes['language'].lower().strip() != 'lkql':
+                return
+
             text = node[0].astext()
             unit = self.lkql_context.get_from_buffer('<buffer>', text)
             if unit.diagnostics: