Wrong calculation of view index in subselect correlator leads to empty correlations

[beikov]

Description

When the embedding view has a select slot count different from the slot count of the view root, the view index is misaligned, leading to empty correlations. This only happens when using EMBEDDING_VIEW, the view root has a simple id and the embedding view a flat view for it's embedded id.

Expected behavior

Actual behavior

Steps to reproduce

Environment

Version:
JPA-Provider:
DBMS:
Application Server: