Redis version: redis-7.2.4
RedisGraph version: redisgraph-2.12.10
Operating system: Ubuntu 20.04

Q1:MATCH (n0 :L2)-[r0 :T2]->(n1 :L5)<-[r1 :T0]-(n2 :L5), (n3 :L1)<-[r2 :T4]-(n2), (n2 :L5)-[r3 :T4]->(n2)<-[r4 :T5]-(n4), (n5)-[r5 :T3]->(n0)-[r6 :T2]->(n6 :L1), (n7 :L6)-[r7 :T6]->(n8)<-[r8 :T3]-(n0) MATCH (n5)-[]->(n0)-[]->(n6) MATCH (n7)-[]->(n8)<-[]-(n0 :L2) RETURN (r6.k53) AS a0;
result: "-1244708350"

Q2:MATCH (n8)<-[r8 :T3]-(n0 :L2)<-[r5 :T3]-(n5), (n7 :L6)-[r7 :T6]->(n8), (n3 :L1)<-[r2 :T4]-(n2 :L5)<-[r4 :T5]-(n4), (n2 :L5)<-[r3 :T4]-(n2 :L5)-[r1 :T0]->(n1 :L5), (n1 :L5)<-[r0 :T2]-(n0 :L2)-[r6 :T2]->(n6 :L1) MATCH (n5)-[]->(n0),(n0)-[]->(n6) MATCH (n7)-[]->(n8)<-[]-(n0 :L2) RETURN (r6.k53) AS a0；
result: null
Q1 and Q2 is equivalent query, so the result should be same. But now the results of these two queries are inconsistent. We analyzed that this bug is jointly caused by the match rewriting and the use of return afterwards.

database:

database.log