Fix CLI hanging with certain commands

[jribbink]

Closes #1731

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For contributor use:

• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 29.47%. Comparing base (d49c4cf) to head (a4d25d9).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
cmd/flow/main.go	0.00%	1 Missing ⚠️
internal/command/command.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1730      +/-   ##
==========================================
- Coverage   29.48%   29.47%   -0.01%     
==========================================
  Files          88       88              
  Lines        5166     5167       +1     
==========================================
  Hits         1523     1523              
- Misses       3456     3457       +1     
  Partials      187      187              

Flag	Coverage Δ
unittests	29.47% <0.00%> (-0.01%)	⬇️

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