Crash was introduced by d639105759491 (pre-Qt-4.8 only)
Task-number: QTBUG-15834
Merge-request: MR-2725
(cherry picked from qt4 commit fd25323de7b5d5f3e0ffb1bd81ea4d251e071566)
Change-Id: I59959d3ba4c9bcb0d39bdbe58432817bbbfdd9f1
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>