Comment (by Roland Haas):

@Steven R. Brandt do you want to keep this open as “major” (meaning “must be fixed before the next release”)? Note that I cannot reproduce this so unless evidence for failure can be furnished this is in danger of being closed with “worksforme”.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2236/formaline-fails-for-trying-to-remove-non