bug #2020 display NONE label on null associations (aminebenhariz)
bug #2020 display NONE label on null associations (aminebenhariz)

This PR was merged into the 1.17.x-dev branch.

Discussion
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display NONE label on null associations

This will fix #2012 and #2013

Commits
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a1a90fe display NONE label on null associations

javiereguiluz/EasyAdminBundle,javiereguiluz/EasyAdminBundle,OskarStark/EasyAdminBundle,yceruto/EasyAdminBundle,OskarStark/EasyAdminBundle,OskarStark/EasyAdminBundle,yceruto/EasyAdminBundle,yceruto/EasyAdminBundle