Underscore in CharField as Primary Key breaks related link displayed by admin's ForeignRawIdWidget

[Robert-Lebedeu]

I understand that in order to handle primary keys that may contain special characters, the usage of django.contrib.admin.utils.quote is needed.

I see that the method label_and_url_for_value(...) of ForeignKeyRawIdWidget doesn't escape the primary key when calculating the related object URL.

I suppose the solution to this problem would be adding args=quote(obj.pk), to the reverse call.

Small example to re-create the BUG:

1. Create following models:

   from django.db import models
   
   class ModelA(models.Model):
       id = models.CharField(max_length=100, primary_key=True)
   
   class ModelB(models.Model):
       a_model = models.ForeignKey(ModelA)
   

2. Enable and register both models to the admin
3. Add a_model field to raw_id_fields of ModelBAdmin
4. Create one instance per model
5. Try using related link displayed by ForeignKeyRawIdWidget and see how it doesn't work.

[Mariusz Felisiak]

Duplicate of #30386.