## Description
Currently, the relationship field's _value(s)_ each render and controls
its own document drawer. This has led to `hasMany` relationships
processing a potentially large number of drawers unnecessarily. But the
real problem is when attempting to perform side-effects as a result of a
drawer action. Currently, when you change the value of a relationship
field, all drawers within are (rightfully) unmounted because the
component representing the value was itself unmounted. This meant that
you could not update the title of a document, for example, then update
the underlying field's value, without also closing the document drawer
outright. This is needed in order to support things like creating and
duplicating documents within document drawers (#7679).
- [x] I have read and understand the
[CONTRIBUTING.md](https://github.com/payloadcms/payload/blob/main/CONTRIBUTING.md)
document in this repository.
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
## Checklist:
- [x] Existing test suite passes locally with my changes
6253ec5d1a