http://bugs.winehq.org/show_bug.cgi?id=57202
--- Comment #14 from tjb steampunque8@gmail.com --- (In reply to Ken Sharp from comment #13)
So does it work in a clean wineprefix?
Finally got a chance to test. Same infinite spam behavior when launching dialog box on wine 10.12 with old prefix, made new prefix and now appears the dialog boxes launch OK with no infinite spam. I think issue can be closed, but with no understanding of why it suddenly started going into this mode (apparently the mono 8.1.0 change required the prefix to be updated on this particular application for some unknown reason)