Kafka Connector does not reconcile created connectors

KafkaConnector doesn't not reconcile already created connectors. When CR is changed, observed generation is changed for CR, configuration as well, but nothing changed in connect pods and created connectors here. In case we try to change connector config manually, CO will get back to default configuration.

Steps to reproduce:
1. Deploy CO
2. Deploy create Kafka Connector and Connect
3. Deploy KafkaConnector with then change some connector configured
4. Check that conenctor is ready
5. Change the connector configuration in KafkaConnector CR

Result:
Connector will remain in , the same as as it has before CR change

Desired is not updated into running one. We tried that manually too, but with same result :
Connector configuration will change .