cubicweb #1381497 support substitution of list of elements passed to RQL IN predicate [open]

given:

wanted_values = [u'foo', u'bar', u'baz']
query = 'Any X WHERE X is Mumble, X name IN %(values)s'

I would like to be able to:

_cw.execute(query, {'values': wanted_values})
prioritynormal
typeenhancement
done in<not specified>
closed by<not specified>