Missing key_type feature on 0.10

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• Problem/bug report.
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• I've asked my question on Gitter and have not received a satisfactory answer.
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Description

On 0.10, key_type still exists from 0.9 but is not manage.

Indeed, ResourceIdentity only handles primary key. It might work if key_type is actually the primary key but it's not. Errors are raising.

For example, with id as a primary key and uuid as key_type.

This is a part of the job. I'm not 100% confident with all side effects that update might have. Maybe @lgebhardt can help with his knowledge.

Gitter on 11th of December 2020

Empieza leyendo ResourceIdentity en la versión 0.10 y compara cómo existía key_type en la 0.9. Reproduce el ejemplo con id como clave primaria y uuid como key_type, y luego rastrea los errores y los posibles efectos secundarios de las actualizaciones. La tarea está terminada cuando key_type se gestione sin esos errores y se confirme el comportamiento previsto.