@Facet on multi value field breaks indexing (be it for discrete or range faceting)

Description

Related issue that probably will have to be solved first: (Range faceting on multiple numeric values does not work)

I have a Phrase entity with multiple Tags.

Phrase.java

The only indexed field in Tag is iid:

Tag.java

Adding a @Facet annotation to mapping results in the following exception while indexing:

Removing @Facet annotation removes the exception along with ability for faceting on tag Ids.
I didn't find any evidence that faceting over multi value fields is deprecated in 5.3.0.Final so it makes me think that it's a bug.

Environment

hibernate version: 4.3.10.Final

Assignee

Yoann Rodière

Reporter

Ashot Golovenko

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