Update 2.16.2 release notes
Add link to Issue 10564 and expand the problem description.
Change-Id: Id747047d56c46dcd28e1fe100c08453c71af01ed
diff --git a/pages/site/releases/2.16.md b/pages/site/releases/2.16.md
index 3e0f2fd..ebcc984 100644
--- a/pages/site/releases/2.16.md
+++ b/pages/site/releases/2.16.md
@@ -869,7 +869,14 @@
In some cases the private and work-in-progress status indicator for
changes updated by push was shown incorrectly.
-* Fix case-insensitive searching of hashtags.
+* [Issue 10564](https://bugs.chromium.org/p/gerrit/issues/detail?id=10564):
+Fix case-insensitive searching of hashtags.
+
+ The index field has always been stored lowercase, since we intended
+ hashtag searches to be case-insensitive. However, we never converted the
+ input string to lower case, with the unexpected result that searching
+ for `hashtag:ACamelCaseTag` would not return results for changes who
+ contain that exact hashtag.
* [Issue 10112](https://bugs.chromium.org/p/gerrit/issues/detail?id=10112):
Upgrade rules_closure to make Gerrit buildable with the latest Bazel version.
