Fix access race in proxy scheduler
Fix access race in proxy scheduler

Signed-off-by: Derek McGowan <e1c79a582b6629e6b39e9679f4bb964d25db4aa8@mcgstyle.net> (github: dmcgowan)

vdemeester/distribution,shyr/distribution,konnase/distribution,huamai-io/distribution,vdemeester/distribution,miminar/distribution,sadlil/distribution,mikebrow/distribution,docker/distribution,yuwaMSFT2/distribution,dobril-stanga/distribution,yuwaMSFT2/distribution,jwhonce/distribution,cezarsa/distribution,thaJeztah/distribution,harrisonfeng/distribution,sadlil/distribution,dmcgowan/distribution,RichardScothern/distribution,harrisonfeng/distribution,konstruktoid/distribution,sergeyfd/distribution,spacexnice/distribution,estesp/distribution,sergeyfd/distribution,duglin/distribution,dmcgowan/distribution,mikebrow/distribution,cezarsa/distribution,estesp/distribution,nwt/distribution,mbentley/distribution,jzwlqx/distribution,dobril-stanga/distribution,mbentley/distribution,miminar/distribution,manoj535/distribution,duglin/distribution,shyr/distribution,konnase/distribution,jwhonce/distribution,huamai-io/distribution,jzwlqx/distribution,thaJeztah/distribution,docker/distribution,nwt/distribution,konstruktoid/distribution,spacexnice/distribution,manoj535/distribution,RichardScothern/distribution