[main] WARN org.opendaylight.yangtools.yang.parser.rfc7950.stmt.meta.XPathSupport - RFC7950 features required in RFC6020 context to parse expression 'not(deref(.)/../same-pass)' [at /w/workspace/yangtools-maven-stage-master/parser/yang-parser-rfc7950/target/test-classes/bugs/bug5518/foo.yang:6:9]