Document skipping default submit rule if project has prolog rules
Change-Id: If02aad5fdba7d275a8341cbab57e8402cab5dca7
diff --git a/Documentation/prolog-cookbook.txt b/Documentation/prolog-cookbook.txt
index 189ccfc..c083f28 100644
--- a/Documentation/prolog-cookbook.txt
+++ b/Documentation/prolog-cookbook.txt
@@ -23,6 +23,11 @@
`rules.enable=false` in the Gerrit config file (see
link:config-gerrit.html#_a_id_rules_a_section_rules[rules section])
+[NOTE]
+Gerrit's default submit rule is skipped if a project contains prolog rules.
+The prolog submit rules are responsible for returning the necessary labels in
+this case.
+
link:https://groups.google.com/d/topic/repo-discuss/wJxTGhlHZMM/discussion[This
discussion thread,role=external,window=_blank] explains why Prolog was chosen for the purpose of writing
project specific submit rules.
