Fix inconsistent casing in items cache

[isc-pbarton]

Fixes #727

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.

Project coverage is 41.37%. Comparing base (88fb29b) to head (09afb83).

Files with missing lines	Patch %	Lines
cls/SourceControl/Git/Utils.cls	94.44%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #751      +/-   ##
==========================================
+ Coverage   41.30%   41.37%   +0.06%     
==========================================
  Files          24       24              
  Lines        3213     3210       -3     
==========================================
+ Hits         1327     1328       +1     
+ Misses       1886     1882       -4     

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[isc-tleavitt]

@isc-pbarton there's a nontrivial merge conflict here - please resolve.

[isc-pbarton]

@isc-tleavitt Merge conflict has been resolved and retested now.