cubicweb #1945725 rqlrewrite doesn't get back everything when part of a query has to be moved in a subquery [resolved]

resulting in errors such as 'variable AF should be selected in a subquery'

prioritynormal
typebug
done in3.13.6
load0.300
load left0.000
closed by#3b51806da60b [rqlrewrite] if inlined relation has to be moved to a subquery, take care of the object of the relation (closes #1945725)