It appears that this issue is no longer being worked on, so we are closing it for housekeeping purposes. If you believe the issue still exists, please open a new ticket after confirming it's present in the latest release.

Got it. Removing triage label.

If we are to include the TokuBackup utility, we need to make sure it can even be used, unless we clearly mark the utility as "beta/do not use" etc.
As such, this is either to be a blocker (i.e. we will fix it) or an agreed documentation issue for GA.
Re-adding triage label so this is seen and decided upon.

IMHO, This is not a "fix in time" but a blocker for PS8 GA.

The branch I am working on: https://github.com/vlad-lesin/percona-server/tree/binlog-lock-porting-to-8.0-with-merged-bug-fixes .

Please don't pay attention to mysqldump code and tests, I have not yet fixed it.