Describe the bug
I simplified the Cypher query to do the following:

1. MATCH nodes with Object label
2. MATCH nodes that are connected with the nodes resulting from the previous query by any edge
3. RETURN the nodes

How are you accessing AGE (Command line, driver, etc.)?

• Command line inside psql client

What data setup do we need to do?
Minimal data setup:
postgresDB=# SELECT * FROM ag_catalog.create_graph('testgraph');
postgresDB=# SELECT * FROM cypher('testgraph', $$ CREATE (n1:Object) RETURN n1$$)
postgresDB=# SELECT * FROM cypher('testgraph', $$ MATCH (n1:Object)
MATCH (n2:Object)
WHERE EXISTS((n1)-[]->(n2))
RETURN n2 $$)
AS (n2 agtype);
ERROR: missing FROM-clause entry for table "n1"
LINE 1: SELECT * FROM cypher('testgraph', $$ MATCH (n1:Object)

What is the necessary configuration info needed?

What is the command that caused the error?
postgresDB=# SELECT * FROM cypher('testgraph', $$ MATCH (n1:Object)
MATCH (n2:Object)
WHERE EXISTS((n1)-[]->(n2))
RETURN n2 $$)
AS (n2 agtype);
ERROR: missing FROM-clause entry for table "n1"
LINE 1: SELECT * FROM cypher('testgraph', $$ MATCH (n1:Object)

Expected behavior
The query should succeed and return 0 rows.

Environment (please complete the following information):

• Installed from docker image obtained from command command docker pull apache/age
• Run using docker command docker run \ --name myPostgresDb \ -p 5455:5432 \ -e POSTGRES_USER=postgresUser \ -e POSTGRES_PASSWORD=postgresPW \ -e POSTGRES_DB=postgresDB \ -d \ apache/age
• PostgreSQL version 15.4

Additional context