tst_QTextMarkdownWriter::fromHtml(preformats with embedded backticks) fails on Wayland

********* Start testing of tst_QTextMarkdownWriter *********
Config: Using QtTest library 6.4.0, Qt 6.4.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 11.1.0), manjaro unknown
FAIL!  : tst_QTextMarkdownWriter::fromHtml(preformats with embedded backticks) Compared values are not the same
   Actual   (output)        : "none `one` ``two``\n\n```three``` ````four````\n\nplain\n\n"
   Expected (expectedOutput): "``` none `one` ``two`` ```\n\n````` ```three``` ````four```` `````\n\nplain\n\n"
   Loc: [/home/liangqi/qt/qt5/qtbase/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp(491)]
PASS   : tst_QTextMarkdownWriter::cleanupTestCase()
Totals: 41 passed, 1 failed, 0 skipped, 0 blacklisted, 113ms
********* Finished testing of tst_QTextMarkdownWriter *********