Before this commit the custom snippets were saved across websites
because the RPC mechanism used by the save & reload does not include the
context by default.
After this commit the custom snippets are saved for the specific website
as initially intended.
No migration is needed: already created snippets that have been created
across all sites will have the correct lifecycle because of the
copy-on-unlink system: trying to delete one will make it specific on
other websites.
Related to task-2374802
closesodoo/odoo#64963
X-original-commit: 42e0f9112404541d1c11ba35e7a3d9bcb939f73b
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>