koji question -- why does this build not show a specific git commit?

[Matthew Miller]

Most build tasks in Koji, like 

  http://koji.fedoraproject.org/koji/taskinfo?taskID=9390300

have a specific git commit in the source parameter. For example in this
case, ad5df7bf04ca75c5415c480436d0ec6ff5d05097. 

But *this* one:

  http://koji.fedoraproject.org/koji/taskinfo?taskID=9250546

just has "HEAD", which is less useful since that moves. I see that it's
from a chainbuild, but when I look at the list of chainbuilds, I see
that most of those appear to use specific commits too. What's
special/weird about this one?


-- 
Matthew Miller
<mattdm at fedoraproject.org>
Fedora Project Leader