I'm not 100% sure on how to get this tested. I have tested this version on the reproduction repo here: https://github.com/anthw/rrule-map-issue which shows no warnings anymore.

Codecov Report

Merging #305 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #305   +/-   ##
=======================================
  Coverage   89.91%   89.91%           
=======================================
  Files          28       28           
  Lines        1943     1943           
  Branches      580      580           
=======================================
  Hits         1747     1747           
  Misses        196      196

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Sorry this has taken me a while to get to, it will probably have to wait until after the holidays.

Thanks for your submission! I think this addresses the issue, however, I wanted a way to manually test the sourcemaps, so I made #310 so the demo also can be debugged using the same sourcemaps. Please let me know if that branch works for you or not. Thanks!

Superceded by #310