The public comment [c201305e00008](https://lists.oasis-open.org/archives/odata-comment/201305/msg00008.html) with title "Deep Updates" states:
In section 8.4 Deep Inserts of OData-Atom-Format-v4.0 it is stated that
"Deep inserts are not allowed in update operations using PUT or PATCH requests."
This is a great pity, as supporting deep updates would enable the very common scenario of saving a document with its lines as a whole.
Could it be possible to add this feature?