tst_gestures fails on OpenSuSE

  QtQA::App::TestRunner: begin tst_gestures: [./tst_gestures] [-silent] [-o] [/work/ci/qt/qt5/dev/_artifacts/test-logs/tst_gestures-testresults-00.xml,xml] [-o] [-,txt]
  Testing tst_Gestures
  FAIL!  : tst_Gestures::customGesture() Compared values are not the same
     Actual   (widget.gestureEventsReceived): 0
     Expected (TotalGestureEventsCount)     : 4
     Loc: [tst_gestures.cpp(400)]
  Totals: 42 passed, 1 failed, 0 skipped, 0 blacklisted
  QtQA::App::TestRunner: test failed, running again to see if it is flaky...
  ********* Start testing of tst_Gestures *********

  Totals: 42 passed, 1 failed, 0 skipped, 0 blacklisted
  ********* Finished testing of tst_Gestures *********
  QtQA::App::TestRunner: test failure could be reproduced twice consecutively
  QtQA::App::TestRunner: end tst_gestures: 11 seconds, exit code 1
  QtQA::App::TestScheduler: tst_gestures failed