Revoking privileges from a non-existing user on a master breaks replication on the slave in the presence of replication filters

The bug reported by MENT-1482 was decided to be fixed in the CS version as well. This ticket duplicates the enterprise report.

In the presence of a replication filter on a slave, revoking privileges from a non-existing user on the master breaks replication on the slave. Without the filter, the slave just proceeds normally without any issues.

How to reproduce:

• Set up a master/replica
• Configure a filter on the replica: replicate_do_wild_table=schema.%
• On the master, execute revoke all privileges from 'nonexistentuser'@'%';

Replication will break with:

Query caused different errors on master and slave.
Error on master: message (format)='Can't revoke all privileges for one or more of the requested users' error code=1269 ;
Error on slave: actual message='no error', error code=0.
Default database: ''.
Query: 'REVOKE ALL PRIVILEGES FROM 'nonexistentuser'@'%''