QSettings - undocumented behaviour "General" section

Discovered by accident that documentation for QSettings class is incomplete. Documentation does not clarify that "General" is considered a "reserved" section heading for ini-based settings usage.

Docs discuss usage of the "%" character to escape certain non-ini usable characters to circumvent limitation of ini-file usage/commonly understood specifications. (see QSettings::Format enum description end paragraphs).

However, documentation does not mention the hard-coded Qt-specific implementation.

See:
qsettings.cpp - 5.15 branch line 1869.
qsettings.cpp - head (6.5.x) branch line 1821.

An advanced search of Qt Bug reports with advanced search:

text ~ "QSettings" AND text ~ "General"

will reveal multiple instances where users are confronted with this situation and/or misunderstand what is being done inside QSettings sources.

Recommend that the behavior of QSettings and usage of "General" as a reserved word be fully documented for users to appreciate what is being imposed, as well as, minimize noise with erroneous/invalid bugs.