[orm] [bug] [events] Fixed event listening issue where event listeners added to a superclass
would be lost if a subclass were created which then had its own listeners
associated. The practical example is that of the sessionmaker
class created after events have been associated with the
_orm.Session class.
[orm] [bug] Hardened the cache key strategy for the _orm.aliased() and
_orm.with_polymorphic() constructs. While no issue involving actual
statements being cached can easily be demonstrated (if at all), these two
constructs were not including enough of what makes them unique in their
cache keys for caching on the aliased construct alone to be accurate.
[orm] [bug] [regression] Fixed regression appearing in the 1.4 series where a joined-inheritance
query placed as a subquery within an enclosing query for that same entity
would fail to render the JOIN correctly for the inner query. The issue
manifested in two different ways prior and subsequent to version 1.4.18
(related issue #6595), in one case rendering JOIN twice, in the
other losing the JOIN entirely. To resolve, the conditions under which
"polymorphic loading" are applied have been scaled back to not be invoked
for simple joined inheritance queries.
[orm] [bug] Fixed issue in sqlalchemy.ext.mutable extension where collection
links to the parent object would be lost if the object were merged with
Session.merge() while also passing Session.merge.load
as False.
[orm] [bug] Fixed issue involving _orm.with_loader_criteria() where a closure
variable used as bound parameter value within the lambda would not carry
forward correctly into additional relationship loaders such as
_orm.selectinload() and _orm.lazyload() after the statement
were cached, using the stale originally-cached value instead.
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Bumps sqlalchemy from 1.4.40 to 1.4.41.
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Sourced from sqlalchemy's releases.
... (truncated)
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