[BUGS] pg_read_all_stats and pg_stat_replication in postgres 10.

In Postgres 10 (release version installed from apt repo on Debian 9), the following columns of the pg_stat_replication view are returned as null for a user who has been granted pg_read_all_stats:

state

sent_lsn

write_lsn

flush_lsn

replay_lsn

sync_priority

sync_state

Other columns (like client_addr, backend_start) have valid values. Other views (like pg_stat_activity) also have valid values. Granting pg_monitor does not help. Only superuser is able to retrieve these values (like it was in 9.6).

Is this a bug?

Thanks,

-Mahadevan