This question already has an answer here:
Yesterday I made a small but important edit to this answer. But when I came back today to check that my edit had been reviewed and accepted, I noticed that my edit had been approved by three reviewers, but then rolled back by the author of the answer.
I tried to find a way to message the answer's author, thewaywewere, directly, but after searching meta I found that unless the author has their contact details on their profile page, there is no way for a new user to contact them (as user's need 50 reputation to comment on an answer).
I then tried to resubmit my edit, but it was rejected for nonsensical reasons by two reviewers, who had clearly not read the link I provided in my edit comment.
I then considered flagging thewaywewere's answer for moderator attention, but after creating an account to do this, I found out that this is also not an option for new users (as user's need 15 reputation to flag an answer).
I didn't want to write this question (as it doesn't have an answer that will be useful to future users of this site), but I was left with no other options (as I don't have time to repeatedly submit the same edit until the author accepts it). And so if someone here with more reputation than me could make the change I was trying to make, I'd appreciate it.
And in case someone were to read through my edit and still think that the answer by thewaywewere is correct, that is, you think that using --oem 3 (the default OCR engine mode) together with tessedit_char_whitelist=0123456789, still works in tesseract-4.0.0a (which by default uses the LSTM OCR engine), then please read through these three links on the topic.
UPDATE: It seems the answer to my question is "as a new user you can't" and that I should either write my own answer (which would have one variable changed from a 3 to a 0) or 'move on' leaving an incorrect answer as the accepted and top answer to the question.