[OpenNebula] tst_qtextscriptengine::thaiWithZWJ() fails on RHEL 7.2

******** Start testing of tst_QTextScriptEngine *********
Config: Using QtTest library 5.10.0, Qt 5.10.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 5.3.1 20160406 (Red Hat 5.3.1-6))
QWARN  : tst_QTextScriptEngine::initTestCase() Some of these tests depend on the internals of some test fonts which are not freely distributable.
These tests will be skipped.
If you have the fonts available, set QT_HAVE_TEST_FONTS=1 in your environment and run the test again.
PASS   : tst_QTextScriptEngine::initTestCase()
SKIP   : tst_QTextScriptEngine::devanagari() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(182)]
SKIP   : tst_QTextScriptEngine::bengali() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(289)]
SKIP   : tst_QTextScriptEngine::gurmukhi() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(527)]
SKIP   : tst_QTextScriptEngine::oriya() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(555)]
SKIP   : tst_QTextScriptEngine::tamil() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(596)]
SKIP   : tst_QTextScriptEngine::telugu() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(673)]
SKIP   : tst_QTextScriptEngine::kannada() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(722)]
SKIP   : tst_QTextScriptEngine::malayalam() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(793)]
SKIP   : tst_QTextScriptEngine::sinhala() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(874)]
SKIP   : tst_QTextScriptEngine::khmer() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(912)]
SKIP   : tst_QTextScriptEngine::linearB() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(956)]
SKIP   : tst_QTextScriptEngine::greek() Test fonts are not available
   Loc: [tst_qtextscriptengine.cpp(984)]
PASS   : tst_QTextScriptEngine::mirroredChars(())
PASS   : tst_QTextScriptEngine::mirroredChars([])
PASS   : tst_QTextScriptEngine::mirroredChars({})
SKIP   : tst_QTextScriptEngine::controlInSyllable_qtbug14204() couldn't find 'Aparajita' font
   Loc: [tst_qtextscriptengine.cpp(1083)]
SKIP   : tst_QTextScriptEngine::combiningMarks_qtbug15675() Result differs for HarfBuzz-NG, skip test.
   Loc: [tst_qtextscriptengine.cpp(1119)]
PASS   : tst_QTextScriptEngine::thaiIsolatedSaraAm()
FAIL!  : tst_QTextScriptEngine::thaiWithZWJ() 'glyphLayout.advances[i].toInt() != 0' returned FALSE. ()
   Loc: [tst_qtextscriptengine.cpp(1260)]
PASS   : tst_QTextScriptEngine::thaiMultipleVowels()
PASS   : tst_QTextScriptEngine::shapingDisabledDevanagari()
PASS   : tst_QTextScriptEngine::shapingDisabledLatin()
PASS   : tst_QTextScriptEngine::cleanupTestCase()
Totals: 9 passed, 1 failed, 14 skipped, 0 blacklisted, 191ms
********* Finished testing of tst_QTextScriptEngine *********
make: *** [check] Error 1