Test case: pointer input device with Option "Floating" "on" in the xorg.conf. Server crashes on first event from this device, due to miPointerSetPosition returning NULL for floating devices.
commit d53e6e02a2595ced1882f5fcd34d08ea039b3b85 Author: Peter Hutterer <peter.hutterer@who-t.net> Date: Thu Aug 16 13:54:42 2012 +1000 mi: don't check for core events in miPointerSetPosition (#53568)
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