Invalid aggregate pushing

When a grouping is performed over a 3 way or higher join and aggregation appears to be eligible to be pushed to a leaf join, but a higher level join contains equi-join criteria where the side in the path of push aggregate target uses a join expression that spans a table not in the aggregate target, then an exception will be thrown during processing that the outside expression value cannot be found.

For example:

TEIID30328 Unable to evaluate t2.e3: No value was available
at org.teiid.query.util.CommandContext.getFromContext(CommandContext.java:430)
at org.teiid.query.eval.Evaluator.internalEvaluate(Evaluator.java:617)
at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:1021)
at org.teiid.query.eval.Evaluator.internalEvaluate(Evaluator.java:622)
at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:1021)
at org.teiid.query.eval.Evaluator.internalEvaluate(Evaluator.java:622)
at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:592)
at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:270)
at org.teiid.query.eval.Evaluator.evaluateTVL(Evaluator.java:210)
at org.teiid.query.eval.Evaluator.evaluate(Evaluator.java:199)
at org.teiid.query.processor.relational.JoinNode.matchesCriteria(JoinNode.java:312)