Fix composer.
Fix composer.

When using v1.2.* i got an error, when removing the v it works.
radmas/LexikFormFilterBundle,aleksilb/LexikFormFilterBundle,garak/LexikFormFilterBundle,radmas/LexikFormFilterBundle,garak/LexikFormFilterBundle,rvanlaak/LexikFormFilterBundle,lexik/LexikFormFilterBundle