[Koha-bugs] [Bug 18651] Move of checkouts is still not correctly handled

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=18651

--- Comment #71 from Katrin Fischer <katrin.fischer at bsz-bw.de> ---
At this moment, I don't feel confident in this patch set to be the right fix.

- We will keep the state of constant renumbering. Once a MySQL restart has
caused the issue, you will never fully recover from it.
- We introduce new issues with the lock/race condition as it keeps check ins
from happening in my tests pretty constantly.

At this point, I am wondering if we shouldn't go as far as reverting bug 18242
and push massively for the database based fix. If your DB has the doubled up id
issue, it means that when returning those items, the entry will get lost, but
the problem will end there.

I have a feeling, that the current fix causes issues like
https://lists.katipo.co.nz/pipermail/koha/2017-July/048437.html
But I am not fully grasping how it happens yet. Also we have seen weird issues
in circulation ourselves testing 16.11.x. with problematic issue_ids.

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