The problems I had using optional keys only surface when the conditions mentioned in bug 777174 exist (i/e/, threading is on). In non-threaded folders, there's no problem with the vm-optional-keys. Sorry for the side path red herring.
The problems I had using optional keys only surface when the conditions mentioned in bug 777174 exist (i/e/, threading is on). In non-threaded folders, there's no problem with the vm-optional-keys. Sorry for the side path red herring.