HDR Mode in graphics settings is ignored and ARGBHalf is being always used

2. How we can reproduce it using the example you attached
1) Open any LWRP project (not attaching)
2) Make sure HDR Mode is set to R11G11B10 in Graphics Settings and HDR is On
3) Save and restart the editor (just to be sure - HDR Mode is initialized only once, so we need the restart)
4) Open again and launch FrameDebugger
5) In the debugger select the last drawcall and hover over _TargetPool1
6) Notice the RT Format is ARGBHalf (otherwise known as FP16). While expected is RGB111110