Should mapper respect normalization groups?

[acirulis]

PATCH request in API Platform (Data Processor), as first step invokes Data Provider in order to get full patchable resource with original content from storage (database).
In APIP architecture, normalization groups are applied after Data Provider/Processor is called.

However, Mapper uses Normalization groups for relations, in order to increase performance (if target relation does not have normalization group from context, relation is ignored).

Upside: performance increases
Downside: if relation is not required in READ context (but required for WRITE only, for example) , and READ normalization group is not applied, it will be lost during PATCH operation.

How to fix it?