Add RepeatedRelationshipReference and provide example (#35)

- Add missing section for already existing notification code
`RepeatedRelationshipReference`.
- Add an example, which cover the only scenario for which the
notification code is issued.

---------

Co-authored-by: LinneaAndersson <[email protected]>
Co-authored-by: Reneta Popova <[email protected]>

Author: 3 people

modules/ROOT/pages/changelogs.adoc

@@ -1,6 +1,16 @@
 :description: This page lists all changes to status codes per Neo4j version.
 = Changes to status codes per Neo4j version
 
+== Neo4j 5.5
+
+
+**New:**
+
+[source, status codes, role="noheader"]
+-----
+Neo.ClientNotification.Statement.RepeatedRelationshipReference
+-----
+
 == Neo4j 5.0
 
 **New:**

modules/ROOT/pages/notifications/all-notifications.adoc

@@ -1069,4 +1069,40 @@ a|The query used a procedure that generated a warning.
 m|WARNING
 |Category
 m|GENERIC
-|===
+|===
+
+[#_neo_clientnotification_statement_repeatedrelationshipreference]
+=== Neo.ClientNotification.Statement.RepeatedRelationshipReference (when run on version 5.5 or newer)
+
+.Notification category details
+[cols="<1s,<4"]
+|===
+|Code
+m|Neo.ClientNotification.Statement.RepeatedRelationshipReference
+|Title
+a|The query returns no results because a relationship variable is bound more than once.
+|Severity
+m|WARNING
+|Category
+m|GENERIC
+|===
+
+.Binding a relationship variable more than once.
+====
+Query::
++
+[source,cypher]
+----
+MATCH (:A)-[r]->(), ()-[r]->(:B) RETURN r
+----
+Description of the returned code::
+A relationship is referenced more than once in the query, which leads to no results because relationships must not occur more than once in each result. (Relationship `r` was repeated)
+
+Suggestions for improvement::
+Use one pattern to match all relationships that start with a node with the label `A` and end with a node with the label `B`:
++
+[source, cypher, role="noplay"]
+----
+MATCH (:A)-[r]->(:B) RETURN r
+----
+====