Crash on GfxDeviceD3D12Base::DrawBuffersCommon when adding specific custom Render Pass Feature to Renderer

Reproduction steps:
1. Open the attached “IN-88755.zip”
2. Open the “SampleScene”
3. In the Project window under the Assets folder, select the “PC_Renderer”
4. In the Inspector window, add the Renderer Feature “CustomRenderPassFeature” to the “PC_Renderer”
5. Observe the crash

Reproducible in: 6000.0.30f1, 6000.1.0a7
Could not test with: 2021.3.46f1, 2022.3.53f1 (Missing namespace errors)

Reproducible on: Windows 10, Windows 11
Not reproducible on: No other environments tested

First few lines of stacktrace:

0x00007FFB9966FB9B (Unity) GfxDeviceD3D12Base::DrawBuffersCommon
0x00007FFB9966F6AC (Unity) GfxDeviceD3D12Base::DrawBufferRanges
0x00007FFB9966F989 (Unity) GfxDeviceD3D12Base::DrawBuffers
0x00007FFB9AE39C77 (Unity) GfxDeviceWorker::RunCommand
0x00007FFB9AE3D06C (Unity) GfxDeviceWorker::RunExt