[Koha-bugs] [Bug 14769] Authorities merge: Set correct indicators in biblio field

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=14769

--- Comment #78 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
Created attachment 74052
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https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=74052&action=edit
Bug 14769: (QA follow-up) Remove global var $cached_indicators

As requested by RM, this patch replaces using the global $cached_indicators
by saving state temporarily during the (limited) lifetime of the object.

Essentially this affects two places in code:
[1] blinddetail-biblio-search.pl (loading auth record in editor)
[2] AuthoritiesMarc::merge (merging authority into biblios)

Concurrent runs of [1] and/or [2] together with a simultaneous pref change
just in between could cause slight (hypothetical) side-effects.
The current approach of keeping state in the object makes that a series of
controlled_indicators calls during an immediate merge of one specific
authority is not affected by a simultaneous pref change. So the same rules
are applied to the set of attached biblio record for that authority.
Note also that the cron job ignores a simultaneous pref change, since
it reads from the unchanged L1 cache (yes, also hypothetical).

Test plan:
[1] Run t/Koha/Authority/ControlledIndicators.t
[2] Run t/db_dependent/Authority/Merge.t
[3] Run t/db_dependent/Koha/Authorities.t

Signed-off-by: Marcel de Rooy <m.de.rooy at rijksmuseum.nl>

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