[sr-dev] problem with tracking master

[Juha Heinanen]

a week ago i created a new head jh/mtree, which is supposed to track
master:

git checkout --track -b mtree master
git push origin mtree:jh/mtree

now when i browse that head on gitweb page, i don't see any changes done
to master, such as the one i did today on lib/srdb1/schema/entities.xml.

what does "tracking master" mean?  how can i see changes done on master
on jh/mtree head?

-- juha