validator fails on any 3.1 spec

[paulch42]

Running the validator against a 3.1 spec immediately results in the error

'float' object has no attribute 'startswith'

Looks like a Python type error. Tried on Python 3.8 and 3.11 and both throw the error. No issues with a 3.0 spec.

[paulch42]

Incorrectly raised. The first line was

openapi: 3.1

but it should be

openapi: "3.1.0"