revert mistaken merge in tasks_lfric_atm.cylc

[mo-marqh]

PR Summary

Sci/Tech Reviewer: iboutle
Code Reviewer: Pierre Siddall (@Pierre-siddall)

The merged change #214 altered the setup of the lfric_atm task dict, but part of that change was reverted by #163

this looks like a merge error, a chunk of code was added, and a chunk of code removed by #214 next door was re-inserted.
perhaps a conflict resolution error?

this change restores the configuration of C896 tests to the state as mandated by #214

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trac.log

Test Suite Results - lfric_apps - fix_lfric_atm_tasks/run1

Suite Information

Item	Value
Suite Name	fix_lfric_atm_tasks/run1
Suite User	pierre.siddall
Workflow Start	2026-04-08T09:43:20
Groups Run	developer

Dependency	Reference	Main Like
casim	MetOffice/casim@2026.03.2	True
jules	MetOffice/jules@2026.03.2	True
lfric_apps	Pierre-siddall/lfric_apps@fixmergeConflict_lfric_atm_tasks	False
lfric_core	MetOffice/lfric_core@018e40c	True
moci	MetOffice/moci@2026.03.2	True
SimSys_Scripts	MetOffice/SimSys_Scripts@4387949	True
socrates	MetOffice/socrates@2026.03.2	True
socrates-spectral	MetOffice/socrates-spectral@2026.03.2	True
ukca	MetOffice/ukca@2026.03.2	True

Task Information

✅ succeeded tasks - 1165

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[mo-marqh]

Tom Hill (@tom-j-h) please may you cross check this change and compare
mo-marqh@376f3a8#diff-b3eb2de2973fad9d752853ffe3ac899ca7710fddbec0504716ed2040329968c2

to the intent for #163

I think that the re-insertion of the configuration for C896 was not related to your change, and essentially backed out part of #214

Please may you share your opinion on this?

[iboutle]

I concur with your analysis that this was a mistake in the merge - this is much easier to do now because github doesn't automatically resolve the changes within file when there aren't conflicts like fcm did, but relies on the author to select each difference by hand, which can easily result in the wrong one being selected!

[Tom Hill (tom-j-h)]

Yes, looks like I made a mistake merging main at some point. Thanks for fixing.

[iboutle]

I'm happy this passes science review

[Pierre Siddall (Pierre-siddall)]

Thanks Mark as this is a relatively trivial change which removes a task and it's associated configuration from the lfric_atm suite, this looks good to head into testing to me :) .