mercurial/crecord.py

--- a/mercurial/crecord.py	Wed Feb 14 22:43:51 2024 -0500
+++ b/mercurial/crecord.py	Wed Feb 14 22:46:41 2024 -0500
@@ -709,6 +709,8 @@
             )
         self.operation = operation
 
+        self.regex = None
+
     def uparrowevent(self):
         """
         try to select the previous item to the current item that has the