When revision mode is enabled so that new text appears in a selected colour, if you select a word to overwrite and replace with an alternative, the first letter of the new word remains in black font colour rather than the revision mode font colour.
Not a big deal.
Thanks, this is filed. I believe it is an issue with a right-to-left selection. If you select the text left to right (or double-click to select a word), all the newly typed text should use the correct revision colour.