randym/axlsx — comment on commit cd890f6c5a84f6b5c5458f4c6edeab9103bf1cee
File: lib/axlsx/workbook/worksheet/worksheet.rb line 354
By ochko:

Without skipping after setting :fixed attr, my carefully chosen fixed widths were no effect on final xlsx. At least in LibreOffice.

I sent a pull request for it but it seems that I've missed the edge case you mentioned. ;)