--- a/mercurial/copies.py Mon Nov 25 12:44:04 2019 -0800 +++ b/mercurial/copies.py Wed Nov 13 20:33:22 2019 +0100 @@ -231,7 +231,7 @@ else: p1copies = {} p2copies = {} - removed = () + removed = [] return p1, p2, p1copies, p2copies, removed else: