The configuration changes applied to the cluster were ineffective

[crazychengmm]

Operator Version: v0.5.3
Mysql Version：bitpoke/percona:5.7

I changed mysql cluster config, such as

---

mysqlConf:
innodb_buffer_pool_size: 1280M
max_connections: "5000"

podSpec:
resources:
requests:
memory: 2G
cpu: 200m
limits:
memory: 4G
cpu: 2000m

bold part was added, I did 'kubectl apply -f ./mysql_cluster.yaml' on k8s but cluster did not reboot, I can not see any mysqlConf on mysql.