You can test the build by running git-buildpackage yourself after blooming before pushing and submitting the pull request. Like this for the razer_hydra package:
git checkout debian/ros-groovy-razer-hydra_0.0.3-0_precise
git-buildpackage -uc -us --git-ignore-new
This will build the debian against your current system. You need to make sure that you already have all the system dependencies for the package installed on your system. And you need to checkout the correct tag for your system architecture.
Tuly