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django/tests/constraints
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Simon Charette 3a1863319c [4.2.x] Fixed #34754 -- Fixed JSONField check constraints validation on NULL values. 
The __isnull lookup of JSONField must special case
Value(None, JSONField()) left-hand-side in order to be coherent with
its convoluted null handling.

Since psycopg>=3 offers no way to pass a NULL::jsonb the issue is
resolved by optimizing IsNull(Value(None), True | False) to
True | False.

Regression in 5c23d9f0c32f166c81ecb6f3f01d5077a6084318.

Thanks Alexandre Collet for the report.

Backport of 3434dbd39d373df7193ad006b970c09c1a909ea3 from main
2023-08-04 10:58:53 +02:00
..
__init__.py
…
models.py
[4.2.x] Fixed #34754 -- Fixed JSONField check constraints validation on NULL values.
2023-08-04 10:58:53 +02:00
tests.py
[4.2.x] Fixed #34754 -- Fixed JSONField check constraints validation on NULL values.
2023-08-04 10:58:53 +02:00