DXR 1.1: Using TraceRayInline(...) right after TraceRay(...) crashes shader compilation

Using the an almost-latest (https://github.com/microsoft/DirectXShaderCompiler/commit/780506e7149648bd940762b6716aa08e2c498a9b) DXC, running TraceRay(...) followed by a TraceRayInline(...):

TraceRay(...);

RayQuery<RAY_FLAG_ACCEPT_FIRST_HIT_AND_END_SEARCH> q;
q.TraceRayInline(...);
q.Proceed();

Crashes the shader compilation with the following error:

Val->VTy->**ContainedTys** was 0xFFFFFFFFFFFFFFFF.

This was done in an RGS during our transition from DXR 1.0 to DXR 1.1.

Start by reproducing the HLSL snippet that calls TraceRay(...) followed by RayQuery< RAY_FLAG_ACCEPT_FIRST_HIT_AND_END_SEARCH >. q.TraceRayInline(...) and q.Proceed() using the referenced DXC commit. Trace the compiler failure reported as Val->VTy->ContainedTys being 0xFFFFFFFFFFFFFFFF; done means the shader compiles without this crash for the DXR 1.0-to-1.1 transition case.