MudCodeInput error

[ivanjx]

Otp is a string property in the code behind with value "".

[mckaragoz]

I need more info about the error, at which point this error occurs, on initialization or pressing some keys?

[ivanjx]

on initialization. i realized that Otp must be null and not empty to avoid this.

also the Error and ErrorText properties does not seem to work.

[mckaragoz]

Added Error and ErrorText. Fix a lot with #402. Please check it after next release and report if there any issues.