Attempting to invite yourself to your own realm results in the error message, "A player with the provided name does not exist"

The Bug:

Attempting to invite yourself to your own realm results in the error message, "A player with the provided name does not exist".

Steps to Reproduce:

1. Navigate to the minecraft realms menu.

2. Click on your realm and hit the "configure realm" button.

3. Click on the "players" button.

4. Hit the "invite player" button.

5. Enter your username and click "invite player".

6. Look at the error message that is displayed.

7. Take note as to whether or not attempting to invite yourself to your own realm results in the error message, "A player with the provided name does not exist".

Observed Behavior:

Attempting to invite yourself to your own realm results in the error message, "A player with the provided name does not exist".

Expected Behavior:

Attempting to invite yourself to your own realm would not result in the error message, "A player with the provided name does not exist". Instead, the error message should state something along the lines of "You cannot invite yourself to your own realm".