Single tag multiple %dist

[Thomas]

Hi,

Is there an easy trick to be able to build on a single Koji tag different
dist:

joe-1.0-2.el5.src.rpm
douglas-1.2-3.el5_0.src.rpm
-> sent to tag "updates".

By default you get "tag mismatch"

The tag is defined by a buildsys package in my setup.

TIA,
-- 
Thomas