The fix I made seems to work... at least to some extent. I don't see alpine crashing any more. But to be honest I am not sure what sort of side effects the fix might have. I am especially concerned that the pico/display.c Pmaster->arm_winch_cleanup++; line can blow up something.
git format-patch -C origin/master..3083534fix
This patch does not work. Window resizing when in normal editing mode goes nuts if the patch is the patch is applied.