Error: no matching function for call to ‘QChar::QChar(const qle_ushort&)

/home/qt/work/qt/qt5compat/src/core5/serialization/qbinaryjson_p.h:226:38: error: no matching function for call to ‘QChar::QChar(const qle_ushort&)’
  226 |             ch[i] = QChar(d->utf16[i]);
      |                                      ^
In file included from /home/qt/work/install/target/include/QtCore/qstring.h:14,
                 from /home/qt/work/install/target/include/QtCore/qhashfunctions.h:9,
                 from /home/qt/work/install/target/include/QtCore/qfloat16.h:10,
                 from /home/qt/work/install/target/include/QtCore/qmetatype.h:15,
                 from /home/qt/work/install/target/include/QtCore/qcborcommon.h:8,
                 from /home/qt/work/install/target/include/QtCore/qcborvalue.h:8,
                 from /home/qt/work/install/target/include/QtCore/qjsonvalue.h:7,
                 from /home/qt/work/install/target/include/QtCore/qjsondocument.h:8,
                 from /home/qt/work/qt/qt5compat/src/core5/serialization/qbinaryjson.h:7,
                 from /home/qt/work/qt/qt5compat/src/core5/serialization/qbinaryjson_p.h:19,
                 from /home/qt/work/qt/qt5compat/src/core5/serialization/qbinaryjson.cpp:4:
/home/qt/work/install/target/include/QtCore/qchar.h:149:43: note: candidate: ‘template<class Char, typename std::enable_if<std::is_same<Char, unsigned char>::value, bool>::type <anonymous> > constexpr QChar::QChar(Char)’
  149 |     QT_ASCII_CAST_WARN constexpr explicit QChar(const Char c) noexcept : ucs(c) { }