Click a depth or note, change it, press Enter. Open this page in a second window as the other user, or on the same user, and watch the rows update. The rule you see is one grant: GRANT SELECT, UPDATE ON logs TO MATCH owner.
Your own SQL, on the branch above. The table name logs is rewritten to the branch. You only get the rows your grant allows.
Read the logs as they were at an earlier commit of the branch above.