Apple Account reset requests passcode for another iPhone

I was prompted to reset my Apple ID Password on my iPhone after typing in the wrong password a couple of times. A screen popped up that said I could reset my Apple ID Password by using my iPhone’s current passcode (passcode to unlock the device on the Lock Screen). I typed in the current passcode and then was prompted to “enter the passcode for other iPhone.” Does this mean that my Apple ID is also logged into another iPhone? I’m confused as to why I was asked to type in the passcode for “other iPhone” when I currently only have one iPhone and my Apple ID should only be being used on one iPhone.

[Re-Titled by Moderator]

Original Title: Enter Passcode for Other iPhone