Correct spelling of an incorrect word that sounds like the word you meant but completely changes the meaning is common…especially if the writer depends upon a word processor’s spellcheck program.
For instance, the words “discretely” and “discreetly” or “their” and “there” do not have the same meaning. They aren’t even close. Yet, they sound the same and are spelled absolutely correct. Spellcheck programs do not check for meaning.
Little known facts: The dictionary and thesaurus that come with computer programs do not include all spelling variants of all words. Nor do they have all words. Their dictionary and thesaurus databases are small in comparison to how many words there really are. Also, if your word processing software gets updated, the new dictionary and thesaurus may not include many words that have been deemed by the tech company to be offensive to some group or another.