[Discuss-gnuradio] Install next branch of gnuradio by Pybombs

Hello, thank you for your attention, I have a doubt in How install the next branch of gnuradio. I have install the master branch of gnuradio very well,  it is working fine, but I need to install the next branch, I have modified the config.yml archive of Pybombs like this:

         gitbranch: next

          inherit: cmake

          config:

                   git-cache: /home/erislandy/.pybombs/gitcache

                   elevate_pre_args:

                          - sudo

                          -- H

                    makewidth: 1

                   packagers: pip,apt,pymod,pkgconfig,cmd

                  default_prefix: myprefix

           recipes:

                  gr-etcetera: git+https://github.com/gnuradio/gr-etcetera.git

                  gr-recipes: git+https://github.com/gnuradio/gr-recipes.git

           packages:

                   gnuradio: gitbranch= next

           prefix_aliases:

                   myprefix: /home/erislandy/prefix

I need to know if this configuretion is very good for installing the next branch of gnuradio. Then, If I have used Pybombs for instaling gnuradio, how  can I check the branch that it have installed. 

Thank you for your attention,