Microsoft Remote Desktop v10.7.9 (2011) macos - Triggers PreventUserIdleSystemSleep

When a sound is played within the session then MRD will trigger PreventUserIdleSystemSleep flag.

"pmset -g assertions" shows

   pid 217(coreaudiod): [0x000066e90001852f] 00:00:11 PreventUserIdleSystemSleep named: "com.apple.audio.AppleHDAEngineOutput:1B,0,1,2:0.context.preventuseridlesleep"  
	Created for PID: 1859. 

That flag is removed when the session is closed.

Expected behavior: Remove the flag when the audio output has finished.

Workaround: Edit the session and set "Play sound:" to "Never".