QSettings::beginWriteArray() produces output different from that documented

Tested by me under Qt 5.12.2 as supplied with Ubuntu 19.04.  Tested by other people on other releases/platforms, including Windows as well as Linux.

Example at https://doc.qt.io/qt-5/qsettings.html#beginWriteArray chooses to state

The generated keys will have the form

• logins/size
• logins/1/userName
• etc.

However, the generated keys use backslashes rather than forward slashes, e.g. logins\1\userName etc.

This concerned me when I started using it.  It does work OK with the corresponding read array.

Is this intentional behaviour (with no unanticipated side-effects from using backslash in key names), in which case it's a documentation issue, or is the code really supposed to be as shown?