'general' settings section works incorrectly

 
If I set general/serviceMode key to 'true' using QSettings in this way:

static const char * serviceModeKey = "general/serviceMode";

QSettings qSettings(settingsFileName(), QSettings::IniFormat);

bool val =  qSettings.value(serviceModeKey, false).value<bool>();

bool other_val = true;

qSettings.setValue(serviceModeKey, other_val);

'general' section is duplicated, so settings file looks like this:

[%General]
 serviceMode=true
...
[%General]
 serviceMode=true
...

and the value is false when the app starts next time.

if I rename the key with 'app/serviceMode', for example, it seems to work fine.

The fact that 'general' is prepended with % is not a bug, but normal behaviour, the bug it that it is duplicated and returns false.