Refs #30095 -- Added Field._choices_is_value().
Refs #30095 -- Added Field._choices_is_value().

This allows fields classes to override the validation of choices'
values.

wkschwartz/django,atul-bhouraskar/django,solarissmoke/django,manhhomienbienthuy/django,solarissmoke/django,takis/django,kaedroho/django,pauloxnet/django,MarkusH/django,django/django,georgemarshall/django,elena/django,shaib/django,pauloxnet/django,monetate/django,adamchainz/django,blighj/django,georgemarshall/django,dsanders11/django,takis/django,auvipy/django,googleinterns/django,MarkusH/django,wkschwartz/django,simonw/django,theo-l/django,koordinates/django,takis/django,MarkusH/django,adamchainz/django,kaedroho/django,blighj/django,koordinates/django,simonw/django,dsanders11/django,koordinates/django,felixxm/django,monetate/django,claudep/django,MarkusH/django,claudep/django,auvipy/django,monetate/django,koordinates/django,googleinterns/django,django/django,shaib/django,claudep/django,ghickman/django,georgemarshall/django,manhhomienbienthuy/django,theo-l/django,felixxm/django,apollo13/django,kaedroho/django,solarissmoke/django,manhhomienbienthuy/django,dsanders11/django,theo-l/django,googleinterns/django,auvipy/django,elena/django,shaib/django,monetate/django,apollo13/django,adamchainz/django,auvipy/django,blighj/django,felixxm/django,rsalmaso/django,felixxm/django,simonw/django,django/django,ghickman/django,claudep/django,freakboy3742/django,pauloxnet/django,ghickman/django,atul-bhouraskar/django,adamchainz/django,ghickman/django,apollo13/django,georgemarshall/django,rsalmaso/django,freakboy3742/django,freakboy3742/django,atul-bhouraskar/django,apollo13/django,solarissmoke/django,atul-bhouraskar/django,theo-l/django,takis/django,shaib/django,rsalmaso/django,googleinterns/django,blighj/django,rsalmaso/django,django/django,simonw/django,manhhomienbienthuy/django,elena/django,wkschwartz/django,pauloxnet/django,wkschwartz/django,elena/django,dsanders11/django