relnotes/5.9

--- a/relnotes/5.9	Fri Apr 30 16:00:40 2021 -0700
+++ b/relnotes/5.9	Thu Nov 04 09:55:37 2021 +0100
@@ -2,7 +2,7 @@
 
  * `hg config` now has a `--source` option to show where each
    configuration value comes from.
- * Introduced a command (debug-repair-issue6533) to repair repositories affected
+ * Introduced a command (debug-repair-issue6528) to repair repositories affected
    by issue6528 where certain files would show up as modified even if they were
    clean due to an issue in the copy-tracing code.