Setting required=False on a custom script variable has no effect

[LinzerToertchen]

Using NetBox 2.7.3 all fields in custom scripts are required (in the html input the required flag is set, when sending it anyways NetBox reports that the field is required).

Environment

• Python version: 3.7.6
• NetBox version: 2.7.3

Steps to Reproduce

1. Have a custom script with a field with required = False
2. Try leaving the field empty
3. Fail

Expected Behavior

The html input is not required and a submit with the field being empty succeeds.

Observed Behavior

The html input is required and a submit with the field being empty fails.

[jeremystretch]

Will be fixed in v2.7.4, but as a temporary workaround you can do this:

class MyCustomScript(Script):
    foo = StringVar()

    def __init__(self):
        super().__init__()
        self.foo.field_attrs['required'] = False