QtWayland 5.14 crashes with animated cursors and 32 bit

QtWayland programs seem to crash now with any cursor theme from the oxygencursors theme.

This is the Debian Stretch name for it at least.

You can set the theme by running

`export XCURSOR_THEME=/etc/X11/cursors/oxy-white.theme`

and then running the qtwayland program

Not sure how to do it per-user

I have the stack trace attached. This is of the 'wiggly' example that comes in qtbase

One with `bt full`

one with thread apply all bt full`   

It used to crash instantly, but then a fix to QtWayland was applied to not animate unanimated cursors. Whenever I can get a 32 bit QtWayland program to show the wait cursor, and I am using an animated cursor set like oxy-white, I get a segmentation fault.   

I can get this rebuilding a Debian chroot from scratch, and recompiling Qtbase and QtWayland 5.14