Add changelog entry for bugzillarest HTTP 400 skip

Signed-off-by: Arron Atchison <aatchison@thunderbird.net>

Author: Arron Atchison

releases/unreleased/skip-bugzilla-bugs-http-400.yml

@@ -0,0 +1,11 @@
+title: Skip Bugzilla bugs that return HTTP 400 during collection
+category: fixed
+author: Arron Atchison <aatchison@thunderbird.net>
+notes: >
+    A single bug could make the Bugzilla REST API return an HTTP 400
+    error (for example, when a field's data is missing from the server's
+    network storage). Because the backend fetches all fields and pages
+    through results, one such bug aborted the whole collection and froze
+    incremental updates indefinitely. The backend now logs and skips a
+    page that returns a 400 and continues, with a safety cap that aborts
+    after too many consecutive failures.