feed in the missing changes from this branch

[chfw]

fix #183

surprisingly the actual code was missing

[codecov-io]

Codecov Report

Merging #197 into dev will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              dev     #197      +/-   ##
==========================================
- Coverage   98.39%   98.38%   -0.01%     
==========================================
  Files          44       44              
  Lines        2116     2232     +116     
==========================================
+ Hits         2082     2196     +114     
- Misses         34       36       +2

Impacted Files	Coverage Δ
tests/test_utils.py	94.05% <100%> (+0.18%)	⬆️
moban/utils.py	97.63% <100%> (+0.76%)	⬆️
moban/mobanfile.py	97.04% <0%> (-2.15%)	⬇️
...sts/integration_tests/test_command_line_options.py	99.04% <0%> (+0.66%)	⬆️

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[chfw]

@CLiu13 , thanks for swift approval.