Optional() disables all other validators...

[himarange]

When adding Optional() in the validators list, all other validators seem to disqualify.
For example:

class ModifyLinkForm(FlaskForm):
    description = TextAreaField('Description', validators=[
        Optional()
        , Length(max=256)
        , Regexp(r"^[a-zA-Z0-9\s.,!?\"'()\-\:_]+$", message="Invalid characters in description.")
        ])

Will ignore the Length, and the Regex validators.
I need to accept empty string and None, but as soon as there is data, I need validation.

Environment:

• Python version: 3.9.13
• Flask-WTF version: 1.2.1
• Flask version: 3.03