QSettings incorrectly processes .ini file with UTF-8 Byte Order Mark (BOM)

QSettings can not handle .ini files with UTF-8 BOM marker at the beginning (0xEF 0xBB 0xBF). For example, when reading file:

<EF><BB><BF>[section1]
foo1=bar1
[section2]
foo2=bar2

the parameters read by QSettings are:
foo1=bar
section2/foo2=bar

i.e. the first section line is ignored. If I insert a blank line at the beginning of the file:

<EF><BB><BF>
[section1]
foo1=bar1
[section2]
foo2=bar2

then QSettings gives the expected result
section1/foo1=bar
section2/foo2=bar

The problem occurs identically in cases when I call setIniCodec("UTF-8") or do not make the call.

While UTF-8 BOM marker is uncommon and not really useful, some instruments (especially in Windows) create files with it. Well, even Qt Creator supports writing UTF-8 BOM. Ignoring the problem and silently failing is not an option in this case.