TLS Allocator ALLOC_TEMP_THREAD, underlying allocator ALLOC_TEMP_THREAD has unfreed allocations, size 23 errors are thrown continuously on opening a new scene after deleting Camera prefab.

Steps to repro:
1. Create a new Project.
2. Create a prefab of the Main Camera.
3. Delete the Camera prefab asset.
4. Create a new Scene.

Actual Result:
TLS Allocator ALLOC_TEMP_THREAD exceptions are thrown in the console.

Expected Result:
No errors in the console.

Reproducible in: 2020.1.0a20.

Working Fine in: 2020.1.0a19, 2019.3.0f6 (27ab2135bccf).

Environment:
Occurring on Windows & Mac.

Stack trace:
TLS Allocator ALLOC_TEMP_THREAD, underlying allocator ALLOC_TEMP_THREAD has unfreed allocations, size 23