AQL 2 Cypher issue: e/ehr_id/value

Queries like

SELECT c, e/ehr_id/value FROM EHR e CONTAINS COMPOSITION c

translates to

MATCH
	(A:EHR), (A)-[*]->(B:COMPOSITION), (A)-[:ehr_id]->(C:HIER_OBJECT_ID)
MATCH path_B = (B) -[*]-> (leaf)
WITH collect(path_B) as paths_B, B

CALL apoc.convert.toTree(paths_B) yield value as tree_B
RETURN
	tree_B AS c, C as e_ehr_id

And Neo4j complains

Neo.ClientError.Statement.SyntaxError: Variable `C` not defined (line 7, column 15 (offset: 221))
"	tree_B AS c, C as e_ehr_id"
               ^

The query translator assumes "HIER_OBJECT_ID" nodes exist. But our Neo4J database has moved the relationship "ehr_id",EHR-HIER_OBJECT_ID to an attribute "ehr_id" in EHR NODES.

• Expected

MATCH
	(A:EHR), (A)-[*]->(B:COMPOSITION)
MATCH path_B = (B) -[*]-> (leaf)
WITH collect(path_B) as paths_B, B, A

CALL apoc.convert.toTree(paths_B) yield value as tree_B
RETURN
	tree_B AS c, A.ehr_id

Here the the value "A" is passed down using the WITH keyword.