fix: UniqueEntity::$service is considered final

[divine]

Fix #741.

[franmomu]

Thanks @divine! what about using the suggested approach by symfony:

Public and protected properties are now considered final; instead of overriding a property, consider setting its value in the constructor

That way a user can use Unique with their own service without overriding the class (I guess it unlikely to happen, but it could happen)

[divine]

Does it look better now?

Thanks!

[malarzm]

Thanks @divine and @franmomu!

[divine]

Hello,

Any ETA for a new release with this fix?

Thanks!

[malarzm]

Here you go :) https://github.com/doctrine/DoctrineMongoDBBundle/releases/tag/4.6.1