[BUG] Hotkeys for some punctuation marks do not work, with or without `useKey`

[joelspadin]

Describe the bug
Based on the documentation, I would expect each of the following to work:

useHotkeys('<', () => {}, { useKey: true }, []);
useHotkeys('>', () => {}, { useKey: true }, []);
useHotkeys('+', () => {}, { useKey: true, delimiter: '_' }, []);

however, only the first one does.

There are some other unexpected behaviors as well. Using a US layout keyboard:

• shift+, does not trigger, with or without useKey, when pressing shift+, or just ,. shift+Comma does work as expected.
• shift+. with useKey triggers only when pressing . without holding shift. shift+Period does work as expected.
• shift+. without useKey never triggers.
• shift+= with useKey triggers only when pressing = without holding shift. shift+Equal does work as expected.
• • shift+= without useKey never triggers.

To Reproduce

Create a hotkey that uses > or + (with the delimiter changed to be something else)

useHotkeys('>', () => {}, { useKey: true }, []);
useHotkeys('+', () => {}, { useKey: true, delimiter: '_' }, []);

Please try and add a codesandbox or stackblitz to reproduce the bug:
https://codesandbox.io/p/sandbox/qwhrs6

Here is a codesandbox template that you can use to recreate a minimal example
https://codesandbox.io/p/sandbox/adoring-shape-bzvk53

Expected behavior
The hotkeys should trigger when shift+. or shift+= are pressed.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows 11
• Browser: Edge version 137.0.3296.68, Firefox version 139.0.4