diff -r bbe59cc5d2e1 -r 587153c96fe3 hgext/phabricator.py
--- a/hgext/phabricator.py	Mon Jul 22 18:20:29 2024 +0200
+++ b/hgext/phabricator.py	Tue Jul 23 19:01:16 2024 -0400
@@ -698,7 +698,7 @@
     oldLength = attr.ib(default=0)  # camelcase-required
     newOffset = attr.ib(default=0)  # camelcase-required
     newLength = attr.ib(default=0)  # camelcase-required
-    corpus = attr.ib(default='')
+    corpus = attr.ib(default=b'')
     # These get added to the phabchange's equivalents
     addLines = attr.ib(default=0)  # camelcase-required
     delLines = attr.ib(default=0)  # camelcase-required