Graph changes persist when Creating Graph with the same name as a recently Deleted Unsaved Graph

Reproduction steps:
1. Create a new project
2. Create VFX Graph
3. Select any several blocks and delete them
4. Close VFX Graph window (Don't save graph accidentally)
5. Delete graph from Project Browser
6. Create new VFX Graph

Expected result: A newly created Graph matches the Template
Actual result: Blocks are missing in a newly created VFX Graph

Reproducible with: 7.6.0 (2019.4.29f1), 10.5.0 (2020.3.14f1), 11.0.0 (2021.1.16f1), 12.0.0 (2021.2.0b4, 2022.1.0a4)