QProcess crashes if command line arguments exceed a certain length

QProcess crashes when having arguments where the concatenated string exceeds a certain length.
I have found multiple numbers for different Windows versions, see also:
http://stackoverflow.com/questions/3205027/maximum-length-of-command-line-string

In my case the limit is at around 10200 characters.

Steps to reproduce:

QProcess proc;
proc.start("cmake.exe", QStringList(QString(10200, QChar('a')))); // OK
proc.start("cmake.exe", QStringList(QString(10300, QChar('a')))); // crashes

(this has been found out when investigating this QtCreator crash: https://bugreports.qt-project.org/browse/QTCREATORBUG-11534)