A change in Gutenberg 9.7 has meant that inline editing of reusable blocks is now possible. Changes are saved outside of the normal saving, and are part of a 'multi entity save flow'.
The P2 Editor needs to be aware of this and probably also perform what is needed for this multi entity save flow.
This is quite tricky and will need some thought. The P2 Editor doesn't use the core/editor store for anything, and that is where reusable block changes are stored.
A change in Gutenberg 9.7 has meant that inline editing of reusable blocks is now possible. Changes are saved outside of the normal saving, and are part of a 'multi entity save flow'.
The P2 Editor needs to be aware of this and probably also perform what is needed for this multi entity save flow.
https://github.com/WordPress/gutenberg/pull/27887
See Automattic/p2editor#507