Does the mash in koji build system support deltamash

[Bill Nottingham]

peng chen (peng.chen22 at gmail.com) said: 
> Everytime my doing a mash, it takes long time. I think that the process of
> make a completely new mash wastes time .
> so if the mash can support deltamash, which update the rpm and its repo , it
> can save much time, especaily only a few
> package have been udpated.

No, it does not support this.

Bill