ycb_django_pr16100

what a new run launched now would send

Add transaction handling to Changelist list_editable processing.
Description
	
It seems that changelist_view in Django admin is missing a transaction. Since the view may change data in database, it should be wrapped in a transaction to prevent unexpected states in case of errors.

Work only inside this repository checkout. Make the code change the task
describes, keeping the diff focused — no drive-by refactors.

When you are done, leave your changes committed or in the working tree;
they are collected automatically.

Stay on this snapshot checkout (`task/ycb_django_pr16100`). Never checkout, pull, or rebase onto `main`. That branch is a README-only orphan.
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