Wrong color highlighting if ':' follows first word on line

C++ labels are color-coded by the Qt Creator editor. If a variable name is the first word on a line and is followed by (with or without space) ':', then this variable name is erroneously also color coded as label. As example please paste the following text in a *.cpp file and open in Qt Creator.

   int variableA(1);
   int variableB(2);
   bool variableCondition(true);
this_is_really_a_label:
   int variableC = variableCondition ? 
                   variableA : variableB;

The word variableA on the last line is color coded like 'this_is_really_a_label'.