apoc.meta.stats for 4.1.0.8 fails whereas 4.1.0.3 succeeds when a rel is back ticked

[fbiville]

[reported by a customer]

Neo4j Version: 4.1.3
APOC Version: 4.1.0.8

create (n:Class {id:1})-[r:`http://www.w3.org/2000/01/rdf-schema#isDefinedBy`]->(s:Student);
call apoc.meta.stats();

results in

@neo4j> call apoc.meta.stats();
Failed to invoke procedure `apoc.meta.stats`: Caused by: org.neo4j.exceptions.SyntaxException: Invalid input ':': expected an identifier character, whitespace, '|', a length specification, a property map or ']' (line 1, column 23 (offset: 22))
"MATCH (:Class)-[r:http://www.w3.org/2000/01/rdf-schema#isDefinedBy]->() RETURN count(r) AS count"