Select pre-annotated field and click on another field, the field gets overwritten

**Describe the bug**
When annotating in Label studio, when users are selecting the pre-annotated field and click on another field, the field gets overwritten.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to a project where data is pre-annotated
2. Click on any field from pre-annotated section and select any other field from available field
3. Error is that the field get overwritten

**Expected behavior**
I think this is expected behavior but still I want to disable it due to my requirement.
Any help to disable this feature would be appreciated.
Thanks in advance.

**Screenshots/Video**
Video attached

**Environment (please complete the following information):**
- OS: CentOS
- Label Studio Version: 1.13.0

https://github.com/user-attachments/assets/9ea18c4d-ae67-4911-bc1a-ac585bd6398a