fix infinite promos on error

[krancour]

Fixes #1101

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[codecov]

Codecov Report

Attention: 21 lines in your changes are missing coverage. Please review.

Comparison is base (da810ea) 50.43% compared to head (6b4751b) 50.37%.

Files	Patch %	Lines
internal/controller/stages/stages.go	56.00%	10 Missing and 1 partial ⚠️
internal/kubeclient/indexer.go	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1103      +/-   ##
==========================================
- Coverage   50.43%   50.37%   -0.07%     
==========================================
  Files         114      114              
  Lines        8044     8076      +32     
==========================================
+ Hits         4057     4068      +11     
- Misses       3841     3861      +20     
- Partials      146      147       +1     

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[jessesuen]

Great!