[Sqlalchemy-tickets] Issue #4228: Regression in lazy loading strategy for sharded setups (zzzeek/sqlalchemy)

[Rishi S. <iss...@bi...>]

New issue 4228: Regression in lazy loading strategy for sharded setups
https://bitbucket.org/zzzeek/sqlalchemy/issues/4228/regression-in-lazy-loading-strategy-for

Rishi Sharma:

SQLAlchemy >= 1.2

In sharded setups, the lazy loading strategy no longer fetches instances available in the identity map; instead, emits a query.

Test case can found found [here](https://github.com/rishi-freshbooks/sqlalchemy/blob/d1618ade1392e17c1028c65e177990e152715d6a/test/ext/test_horizontal_shard.py#L377-L418)