SwitchActiveTexturesToBackbuffer causes an unnecessary RG_FinalBlit pass when RenderScale is any integer multiple

How to reproduce:
1. Open the attached “IN-132313_Issue_SwitchActiveTexturesToBackbuffer“ project
2. Open the “SampleScene” Scene
3. Navigate to Assets → Settings → PC_RPAssets
4. In the Inspector window in the Quality section, set “RenderScale” to 0.5
5. Set the Game View tab to a different resolution (e.g. 1920x1080, 2560x1440, …)
6. Navigate to Window → Analysis → Frame Debugger
7. Enable frame debugging
8. Observe the Frame Debugger

Actual result: There is an “RG_FinalBlit” pass
Expected result: There is no “RG_FinalBlit” pass

Reproducible with: 6000.3.8f1, 6000.4.0a2 (f6e13feabba2)
Not reproducible with: 6000.4.0b8, 6000.5.0a6
Could not test with: 2023.1.0a1, 6000.0.67f1, 6000.3.0a1 (the “SwitchActiveTexturesToBackbuffer” method was not available in these versions)
Fixed in: 6000.4.0a2 (79bd4f638ac0)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:

• When RenderScale is any integer multiples (e.g. 0.1, 0.2, 0.25, 0.5), PointFilter becomes active and causes an unnecessary RG_FinalBlit pass
• Changing the Editor window's resolution can also cause an unnecessary RG_FinalBlit pass