tst_qfontcombobox fails on Mac OS X

QtQA::App::TestRunner: begin tst_qfontcombobox: [./tst_qfontcombobox.app/Contents/MacOS/tst_qfontcombobox] [-silent] [-o] [/work/ci/qt/qt5/5.4/_artifacts/test-logs/tst_qfontcombobox-testresults-00.xml,xml] [-o] [-,txt]
Testing tst_QFontComboBox
FAIL! : tst_QFontComboBox::currentFont(default) Compared values are not the same
Loc: [tst_qfontcombobox.cpp(151)]
FAIL! : tst_QFontComboBox::currentFont(default2) Compared values are not the same
Loc: [tst_qfontcombobox.cpp(151)]
FAIL! : tst_QFontComboBox::currentFont(.Lucida Grande UI) Compared values are not the same
Loc: [tst_qfontcombobox.cpp(151)]
FAIL! : tst_QFontComboBox::fontFilters(AllFonts) Compared values are not the same
Actual (box.model()->rowCount()): 207
Expected (c) : 208
Loc: [tst_qfontcombobox.cpp(229)]
FAIL! : tst_QFontComboBox::fontFilters(ScalableFonts) Compared values are not the same
Actual (box.model()->rowCount()): 207
Expected (c) : 208
Loc: [tst_qfontcombobox.cpp(229)]
FAIL! : tst_QFontComboBox::fontFilters(ProportionalFonts) Compared values are not the same
Actual (box.model()->rowCount()): 198
Expected (c) : 199
Loc: [tst_qfontcombobox.cpp(229)]
FAIL! : tst_QFontComboBox::fontFilters(ScalableFonts | NonScalableFonts) Compared values are not the same
Actual (box.model()->rowCount()): 207
Expected (c) : 208
Loc: [tst_qfontcombobox.cpp(229)]
FAIL! : tst_QFontComboBox::writingSystem(Any) Compared values are not the same
Actual (box.model()->rowCount()): 207
Expected (list.count()) : 208
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(Latin) Compared values are not the same
Actual (box.model()->rowCount()): 196
Expected (list.count()) : 197
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 0) Compared values are not the same
Actual (box.model()->rowCount()): 207
Expected (list.count()) : 208
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 1) Compared values are not the same
Actual (box.model()->rowCount()): 196
Expected (list.count()) : 197
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 2) Compared values are not the same
Actual (box.model()->rowCount()): 97
Expected (list.count()) : 98
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 3) Compared values are not the same
Actual (box.model()->rowCount()): 103
Expected (list.count()) : 104
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 5) Compared values are not the same
Actual (box.model()->rowCount()): 19
Expected (list.count()) : 20
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 19) Compared values are not the same
Actual (box.model()->rowCount()): 12
Expected (list.count()) : 13
Loc: [tst_qfontcombobox.cpp(276)]
FAIL! : tst_QFontComboBox::writingSystem(enum 29) Compared values are not the same
Actual (box.model()->rowCount()): 180
Expected (list.count()) : 181
Loc: [tst_qfontcombobox.cpp(276)]