Test case: tst_xdgdecorationv1::clientSidePreferredByCompositor has failed on openSUSE_15_5 X86_64 GCC
The test failed 4 times and was flaky 4 times last week.

Coin log excerpt from failed run:
agent:2024/04/05 04:31:47 build.go:404: 17: FAIL! : tst_xdgdecorationv1::clientSidePreferredByCompositor() '!m_toplevel->surface()->m_pending.buffer' returned FALSE. ()
agent:2024/04/05 04:31:47 build.go:404: 17: Loc: [/home/qt/work/qt/qtwayland/tests/auto/client/xdgdecorationv1/tst_xdgdecorationv1.cpp(33)]
...

Full log at : coin log
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