What is the difference among those tags in koji?

[yanchuan]

Hi,
What is the difference among thos tags in the  buildsystem web of Fedora http://koji.fedoraproject.org/koji?
There are 13 tags for Fedora 15,and I'm confused with the relationship among those tags.I know dist-f15-updates
is inherited from dist-f15,and dist-f15-override is 

 inherited from dist-f15-updates.I what to know which package should
goes to dist-f15-updates? In what situation, a package should goes to dist-f15-override but not dist-f15-updates?
Where can I find some relevant docs?I'm new here.
Thanks.


Yanchuan



-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.fedoraproject.org/pipermail/buildsys/attachments/20110625/bff1a100/attachment.html