Before this commit, when an image was cropped in a record on which
multiple users were collaborating, multiple attachments would be created
for the same image (one per user).
Multiple attachments for the same image would also be created if the
user uploaded the same image multiple times in the same record.
This commit makes sure that, when about to create an attachment via the
'add_data', 'add_url' and 'modify_image' routes, if an attachment
already exists for the same field values, the existing attachment is
returned instead of creating a new one.
task-3524601
closesodoo/odoo#148556
X-original-commit: 0e2508388fc03b2ea7a4033e571d289efa4ac479
Signed-off-by: Nicolas Bayet (nby) <nby@odoo.com>
Rodolpho Lima
cce80f4c73