Dan did exactly the right thing with this bug, and I am going to do something terrible. This bug belongs on a 3.8.z list, however there is no 3.8.z target release. I am adding 'target release' == 3.10 to get it off of the 3.9 release blocking lists. Once we stop looking at 3.8/3.9 blockers this bug should return to targeting 3.8.
I'm so sorry. I feel dirty.
closing old fixed 3.8 bugs