Sometimes UOWTask does sorting circular dependencies wrong

[Former user]

Testcase with (I hope, sufficient) description is in the attachment.

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Angri

[Mike Bayer]

its a nice test and I'll work on it. But your problem is that you're sending a list of objects to flush(), which is never a good idea since SQLA's dependency logic doesn't handle a subset of objects with dependencies to other pending objects which are not in the list very well, so for now I'd suggest not using that feature - the bugfix may ultimately require a change in behavior.

It definitely is a bug though that the non-persisted objects are getting stuck in the identity map.

[Mike Bayer]

The bug existed regardless of the sort, but only had that exact symptom in some cases. Elements which remain pending are no longer inadvertently logged as persistent, 2dba55cb27cf52fb41533ff0cf85096db38b5d9d.

[Mike Bayer]

Removing milestone: 0.5.xx (automated comment)