[Issue 10395] Support multiple readers on uncommitted changes

https://bugs.openldap.org/show_bug.cgi?id=10395

--- Comment #22 from kero renault.cle@gmail.com ---

There's no point basing on mdb.master, which is for 0.9. The 0.9 branch is closed for new features.

Actually, I didn't know that, or I forgot. Thanks for the reminder.

Please let me know if the patch rebased on mdb.master3 looks fine and can be applied correctly.

Just so you know, I have a bunch of CIs running [CIs running], and everything looks fine for them. There are tests using nested read transactions from a write one in an environment with an encryption-at-rest setup. Obviously, tests don't catch everything, but that's encouraging.

Have a nice day, kero

[CIs running]: https://github.com/meilisearch/heed/pull/307/checks