Hi,
As far as I know, no one is working on this bug, so if you'd like to
contribute a fix based on the initial patch, that would be fine. In
addition to adding tests, we would want to see an evaluation that
explains why the fix is correct, especially since the comment in the JDK
bug says:
I've recently run into JDK-8149134: when a Text node has been added to a
TextFlow, the Text node's selectionStart and selectionEnd properties are
interpreted relative to the whole TextFlow rather than the individual span,
which means that a selectionFill color may be applied in the wrong place.
