updateAll() / deleteAll() fails if criteria contains =~ (ilike) operator

Create a detached query for a domain class like this

def criteria = MyDomain.where {
	myInt == 10
	myString =~ "myString%"
}

The query works when using criteria.findAll() but fails when trying to update or delete the resulting records:

def resultCount = criteria.updateAll(myInt: 20)

The bug seems to be located in org.grails.datastore.mapping.query.jpa.JpaQueryBuilder:586 where the query is appended to the projection and not to the selection part.
The resulting query then looks like:

UPDATE grails_ilike.MyDomain myDomain SET myDomain.myInt=?lower(myDomain.myString) like lower(?) WHERE (myDomain.myInt=? AND )