[New cypher engine] Using backtiles in relation names actually add them in the relation name (instead of acting like quotation tokens) #3217
Description
Simple example
Same query executed 4 times on new engine, one on old one :
MATCH (a),(b) WHERE ID(a) = "#1:0" and ID(b) = "#4:0"
MERGE (a)-[r:`in`]->(b)RETURN a, b, r