Shipping method form validation bug

Description

When trying to create a shipping method in Commerce Manager, the following name is flagged with the following validation check message.

Name: "us_expedited"
Message: The first character must be a letter. White spaces are not allowed.

The name adheres to the message restrictions. So, either the message is incorrect, or validation checking is incorrect because names with spaces are possible.

I was able to reproduce this in a Foundation demo site not associated with the user's code.