Add warning to changelog about tag 0.13.3+3
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 321fd3e..adf3929 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@
 
 ## 0.13.3+3
 
+* Do not use this tag in our systems - there was an earlier version of it
+  pointing to a different commit, that is still in some caches.
+
 * Fix missing_return analyzer errors in `processStartTag` and `processEndTag`
   methods.