v1.5.78 RollupAsyncProcessor.retrieveAdditionalCalcItems bugfix

[jamessimone]

• Fixes issue raised in Full Recalculate and RollupFullBatchRecalculator issues #467 - proper null handling in RollupAsyncProcessor.retrieveAdditionalCalcItems when lookup field is null on calc items
• Optimized even further by preventing async run entirely when there was never a lookup field set

[codecov]

Codecov Report

Merging #473 (30364c3) into main (30fc658) will decrease coverage by 0.01%.
The diff coverage is 95.12%.

@@            Coverage Diff             @@
##             main     #473      +/-   ##
==========================================
- Coverage   96.81%   96.81%   -0.01%     
==========================================
  Files          33       33              
  Lines        6535     6553      +18     
  Branches       54       54              
==========================================
+ Hits         6327     6344      +17     
- Misses        207      208       +1     
  Partials        1        1              

Flag	Coverage Δ
Apex	96.81% <95.12%> (-0.01%)	⬇️
LWC	96.64% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
rollup/core/classes/RollupLogger.cls	88.88% <ø> (+0.92%)	⬆️
rollup/core/classes/RollupAsyncProcessor.cls	95.05% <86.66%> (-0.66%)	⬇️
rollup/core/classes/Rollup.cls	96.50% <100.00%> (+0.27%)	⬆️
rollup/core/classes/RollupLimits.cls	100.00% <100.00%> (ø)