TextMeshPro SG compilation errors when enabling Path Tracer

Version tested:: 2020.3.31f1 + HDRP 10.8.1 + TMP 3.2.0-pre4 (stored locally in repro project)

Steps to reproduce:

1) Open attached project, OutdoorsDXRScene
2) Make sure TMP object in the scene uses TMP_SDF-HDRP LIT or TMP_SDF-HDRP UNLIT Shader Graphs
3) Enable Path Tracer in the scene
4) Observe SG compilation errors and TMP object not being rendered properly

Errors:

Shader error in 'TextMeshPro/SRP/TMP_SDF-HDRP LIT': no matching function for call to 'GetSurfaceNormal_float' at 13637(13) (on d3d11)

Shader error in 'TextMeshPro/SRP/TMP_SDF-HDRP LIT': unknown type name 'texture2D'; did you mean 'texture'? at Pro/Shaders/SDFFunctions.hlsl(25) (on d3d11)