localCI: fix crash getting pull requests
localCI: fix crash getting pull requests

validates all needed fields of the objects returned by
the pullRequestService before use them

fixes #211

Signed-off-by: Julio Montes <4a43a13347431ef00be7d745d08a5ba1757e840b@intel.com>

bwarden/tests,devimc/tests,devimc/tests,MarioCarrilloA/tests,sboeuf/tests,chavafg/tests,clearcontainers/tests,clearcontainers/tests,MarioCarrilloA/tests,sboeuf/tests,bwarden/tests,chavafg/tests