Node not created when including an inconsequential FOREACH

[DominicWuest]

I found a discrepancy when running two semantically equivalent queries against an empty database:

---

1:

WITH 0 AS n0 SKIP 1
CALL {
  MERGE ()
}

Creates a node.

---

2:

WITH 0 AS n0 SKIP 1
CALL {
  FOREACH (n1 IN [] | MERGE () )
  MERGE ()
}

Does not create a node.

---

I believe the queries mentioned above are semantically equivalent and thus their result should be the same.
The FOREACH iterates over an empty list, so it shouldn't have an effect on the outcome.

I encountered this issue when testing queries on the FalkorDB master branch in a Docker container running redis:7.2.3-bookworm.

Steps to reproduce

Run the aforementioned, semantically equivalent, queries against an empty database and observe that their results differ.

Expected behavior

The queries should result in the same behavior

Actual behavior

The query results differ