Testing changes to stdlib without remaking the whole of Julia

Is it also possible to use Revise.track(Random) but develop Random in a separate folder and not /path/to/my/julia/share/julia/v1.1/Random/?

I tried @kristoffer.carlsson’s suggestion in Editing a package in stdlib - #5 by kristoffer.carlsson but couldn’t get it to work. The pushfirst! doesn’t seem to have any effect.