(Windows) Ctrl+Shift+key doesn't have shift modifier with VTE input mode

[the-mikedavis]

cargo run --example --features=windows-legacy -- --windows-legacy

When using the console API, the key combination CtrlShifts for example prints as you would expect: key 'S' with CONTROL and SHIFT modifiers. When using VTE:

cargo run --example --features=windows-legacy

The SHIFT modifier is missing and instead of the key being 'S' it is lowercase 's'.