git and jhbuildrc

[Diego Escalante Urrelo <diegoe gnome org>]

Hey everyone,

was wondering if you have had any chance to find out how to tell
jhbuild (via jhbuildrc) to build an especific branch/tag of your
project.

Also, it seems to me that gnome-common is missing some files(?), at
least comparing:
 http://svn.gnome.org/viewvc/gnome-common/trunk/
with:
  http://git.gnome.org/cgit/gnome-common/tree/

some files like gnome-common.spec.in are missing, which makes it FTBFS here.

Ideas?