diff --git a/Documentation/config-accounts.txt b/Documentation/config-accounts.txt
index b4a5cef..c6d9fb4 100644
--- a/Documentation/config-accounts.txt
+++ b/Documentation/config-accounts.txt
@@ -343,6 +343,12 @@
 The `accountId` field is mandatory. The `email` and `password` fields
 are optional.
 
+Note that git will automatically nest these notes at varying levels. If
+refs/meta/external-ids:7c/2a55657d911109dbc930836e7a770fb946e8ef is not
+found then check
+refs/meta/external-ids:7c/2a/55657d911109dbc930836e7a770fb946e8ef and
+so on.
+
 The external IDs are maintained by Gerrit. This means users are not
 allowed to manually edit their external IDs. Only users with the
 link:access-control.html#capability_accessDatabase[Access Database]