Description of problem:
Current "make build" commits build request to tobuild
even when the current package files have not been tagged
with "make tag".  This has hit me a number of times after
importing packages into Extras.

How reproducible:
every time

Steps to Reproduce:
1. import srpm into extras cvs
2. make build
  
Actual results:
2. Mail from buildsystem saying "no such tag".

Expected results:
2. Build request not committed to tobuild with error "no such tag".

Additional info:
This is further exasperated by subsequent build requests (once tagged)
being "ignored" by the buildsystem seemingly until the tobuild file gets
cleaned up...