Yup. It happened to me. After the .dev TLD was created, I switched all my internal dev hostnames over to .test because it's one of the reserved TLDs [1].

I also switched off of .local after learning that it's used for mDNS [2].

1: https://www.rfc-editor.org/rfc/rfc2606.html#page-2

2: https://en.wikipedia.org/wiki/.local