dokcer-compose up -d
symfony console doctrine:migrations:migrate
symfony serve -d
Go to /admin
Create 3 players
go to /gameform
click on the 'add' button to create the first team put the score at 13 (to avoid other validation constraints) register two players
click on the add button to add another team put the score between 0 and 12 (same reason than above) register two players so as to have one duplicated player in each team
click on save
Now you can see that in the profiler the validation error is identified on the duplicated player thanks to the atPath() method But on the client side all the players are overlined in red.