[FIX] base_sparse_field,mail: handle None _instanciate_attrs override

The parent was expected to return a dict, but it can also return None in some
cases. When that happens, the overrides were crashing because it is impossible
to assign a key/val to None.

Note that using `if` conditions like this also prevents from writing on the dict
if it is existing but empty, but due to the definition of the parent, if there
is a dict, it will not be empty.

closes odoo/odoo#38316

X-original-commit: 3525fad3b1729286d139b19a4a92f1821d94ad88
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>

0 files changed, 0 insertions, 0 deletions