correct values in the halo corner of LatLon grid

[weiyuan-jiang]

The corner values of halo region of latlon grid are filled.

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Trivial change (affects only documentation or cleanup)

Checklist:

• I have tested this change with a run of GEOSgcm (if non-trivial)
• I have added one of the required labels (0 diff, 0 diff trivial, 0 diff structural, non 0-diff)
• I have updated the CHANGELOG.md accordingly following the style of Keep a Changelog

[weiyuan-jiang]

It should be non-zero diff. But we don't have such tests so I tag it with zero-diff

[mathomp4]

It should be non-zero diff. But we don't have such tests so I tag it with zero-diff

@weiyuan-jiang What do you mean it's non-zero-diff but we can't test it? Is it because we can't run with the lat-lon grid?

[weiyuan-jiang]

It should be non-zero diff. But we don't have such tests so I tag it with zero-diff

@weiyuan-jiang What do you mean it's non-zero-diff but we can't test it? Is it because we can't run with the lat-lon grid?

I mean we don't have test of halo of latlon and we have not used it . So we cannot see the non-zero-diff

[mathomp4]

I mean we don't have test of halo of latlon and we have not used it . So we cannot see the non-zero-diff

Ah. Okay. I'll update the branch and get it in.