QLineEdit, password masking on Mac

With 5.1.0, passwords are no longer completely masked on Macs. The last character typed in remains visible.

From looking at the source code, the behaviour is intentional and governed by QStyleHints::passwordMaskDelay(), which for some reason returns 8226 on this Mac. And indeed, it takes 8 seconds for the password to be fully masked.

I never noticed a mask delay on Desktops before, be it with Qt Applications (using Qt 5.0 or lower) or with other Mac applications. There should not be a mask delay in a desktop app.