--- a/mercurial/changegroup.py Fri Jan 15 01:58:59 2021 +0100 +++ b/mercurial/changegroup.py Wed Jan 20 14:47:13 2021 +0100 @@ -334,6 +334,7 @@ deltas, csmap, trp, + alwayscache=True, addrevisioncb=onchangelog, duplicaterevisioncb=ondupchangelog, ):