Accidently added master password to my vault

I was setting up a self-hosted vault and when I created my master password (same as my hosted vault) my chrome extension for my bitwarden-hosted vault popped up and instinctively saved the login to that. So effectivity I have accidently saved the master password to the same vault it is the password for.

I immediately realised my mistake and disconnected the internet but found that the chrome extension has already synced the entry as it was in my bitwarden-hosted web vault. I then quickly deleted the entry and then permanently deleted it from the Trash.

So my question is, am I worrying about nothing, or do I need to change both master passwords?