Wait a sec - an override for that bar? I thought you were talking about an override for one note?
Dorico 3.0 had a (new) problem with enharmonic spelling; in that version I had to respell more than I was used to. In 3.0.10 (and 2.2.20 and earlier) I don’t find myself respelling much. It depends on what kind of music it is, though.