[dev] [dwm] "reload" configuration?

So, in the early stages of trying out dwm, the thing I'm finding most
frustrating is the need to restart after changing config.h.

My first attempt was to modify spawn such that if arg->v[0] is "dwm", it
doesn't fork, just exec's. But, when doing that, all the windows' tag
information is lost, so I end up with 50 windows jumbled onto tag 1 on
one monitor.

Anyone have suggestions?

-- 
Best,
Ben