[req] fix find() generating non-rewritable rql on non final relations When filtering on a relation, find() was generating rql like 'Any X WHERE X is ETYPE, X relation EID' which work without being rewritten (it should probably not), but when applying some rewrite (eg. permissions) it raise in rqlrewrite code. def _use_orig_term(self, snippet_varname, term): ... > self.rewritten[key] = term.name E AttributeError: 'Constant' object has no attribute 'name' Generate valid rql instead 'Any X WHERE X is ETYPE, X relation Y, Y eid EID'.

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