httprepo: record the url after a request, makes pull + redirect works
POST+redirect doesn't work in python, as a workaround we record the url
from the previous GETs so that when we do a POST it uses the redirected url
fix issue327
abort: edit failed: false exited with status 1
transaction abort!
rollback completed
abort: edit failed: false exited with status 1
transaction abort!
rollback completed