Hello @EugeneK ,
thanks for submitting this. We are aware of this issue and it is going to be fixed in the next release of the operator (v 1.6), which is planned to go out by the end of 2020.
The code is already there and merged:
Jira issue: https://jira.percona.com/browse/K8SPSMDB-268
PR: https://github.com/percona/percona-server-mongodb-operator/pull/434
Please let me know if it helps.