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50328f0a61
There were a couple of errors in ._dirty flag handling:
* It started as None, but was never reset to None.
* The _dirty flag was sometimes used to indicate if the connection
was inside transaction management, but this was not done
consistently. This also meant the flag had three separate values.
* The None value had a special meaning, causing for example inability
to commit() on new connection unless enter/leave tx management was
done.
* The _dirty was tracking "connection in transaction" state, but only
in managed transactions.
* Some tests never reset the transaction state of the used connection.
* And some additional less important changes.
This commit has some potential for regressions, but as the above list
shows, the current situation isn't perfect either.
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| .. | ||
| class-based-views | ||
| contrib | ||
| files | ||
| forms | ||
| models | ||
| templates | ||
| clickjacking.txt | ||
| databases.txt | ||
| django-admin.txt | ||
| exceptions.txt | ||
| index.txt | ||
| middleware.txt | ||
| request-response.txt | ||
| settings.txt | ||
| signals.txt | ||
| template-response.txt | ||
| unicode.txt | ||
| urlresolvers.txt | ||
| urls.txt | ||
| utils.txt | ||
| validators.txt | ||