--- a/mercurial/configitems.py Tue Jan 05 21:02:00 2021 +0100
+++ b/mercurial/configitems.py Wed Jan 06 14:09:01 2021 +0100
@@ -700,6 +700,11 @@
)
coreconfigitem(
b'devel',
+ b'copy-tracing.multi-thread',
+ default=True,
+)
+coreconfigitem(
+ b'devel',
b'debug.extensions',
default=False,
)