react-input-mask returns underscore at the end of value

[henriquezolini]

I have a nextjs project and I use ant design as a design system, I made a component for input mask, but any mask I put, returns an underscore at the end of the value, even if it is completely filled.

live example: https://codesandbox.io/p/sandbox/plxx6x

[pavellevap2]

same

[GabrielModog]

maskChar={null}