[BUG 2025 - REQIRES TRIAGE] Multiple instances of the Same judge get added

**Describe the bug**

This may be an interface thing or an API Thing.

Experienced in DERT 2025 when adding Judges multiple instances of the named judge appear to get added to the list and then all instances appear to get selected.

You can see the multiples by proceeding to the competition judges an then the judges tab and opening the selector at the top of the page (the plus button)

This bug requires triage and then properly defining.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**

When adding a single judge only one instance of that judge is added.

**Screenshots**
If applicable, add screenshots to help explain your problem.


**Desktop (please complete the following information):**
- OS: [e.g. Windows, macOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Smartphone (please complete the following information):**
- Device: [e.g. iPhone6]
- OS: [e.g. iOS8.1]
- Browser [e.g. stock browser, safari]
- Version [e.g. 22]

**Additional context**

It is considered that this might happen if the user is on the ad judged page and the form is not reset after creating each judge. Therefore the ones created earlier are being added again every time we add a new judge.
Add any other context about the problem here.