try fixing coro issue.

src/wikiq/__init__.py

@@ -30,7 +30,7 @@ from wikiq.wiki_diff_matcher import WikiDiffMatcher
 
 TO_ENCODE = ("title", "editor")
 PERSISTENCE_RADIUS = 7
-DIFF_TIMEOUT = 60*20
+DIFF_TIMEOUT = 60
 from pathlib import Path
 
 import pyarrow as pa
@@ -52,8 +52,9 @@ async def diff_async(differ, last_text, text):
         return differ.inline_json_diff(last_text, text)
     try:
         result = await asyncio.wait_for(_diff(), DIFF_TIMEOUT)
-    except TimeoutError as e:
-        raise e
+    except TimeoutError:
+        print(f"WARNING! wikidiff2 timeout for rev: {row_buffer['revid'][i]}. Falling back to default limits.", file=sys.stderr)
+        return
     return result
 
 def calculate_persistence(tokens_added):
@@ -677,10 +678,8 @@ class WikiqParser:
                     last_text = last_rev_text
                     new_diffs = []
                     for i, text in enumerate(row_buffer["text"]):
-                        try:
                         diff = asyncio.run(diff_async(differ, last_text, text))
-                        except TimeoutError:
-                            print(f"WARNING! wikidiff2 timeout for rev: {row_buffer['revid'][i]}. Falling back to default limits.", file=sys.stderr)
+                        if diff is None:
                             diff = fast_differ.inline_json_diff(last_text, text)
                         new_diffs.append(diff)
                         last_text = text