Must save twice for new files to get autofix working

[jsumners]

What version of this package are you using?

v1.5.1

What operating system, Node.js, and npm version?

macOS 11.2.3
Node v14.17.0
npm 6.14.13

What happened?

When starting a new file I must press cmd+s twice in order for autofix to apply corrections. For example, creating a new file with this content will result in no corrections being applied on the first save attempt:

'use strict'

const server = require('fastify')({logger: false})

server.route({
  path: '/',
  method: 'GET',
  handler (request, reply) {
    reply.send({hello: 'world'})
  }
})

module.exports = server

What did you expect to happen?

When saving the new file for the first time, any rule violations should be automatically fixed.

Are you willing to submit a pull request to fix this bug?

No. I am not familiar with TypeScript.