[BP 7.2.0 MB-53107] [N1QL] insert returning does not trigger memory quota

Basically we are seeing that this insert does not trigger a memory quota exceeded

empty bucket default

curl -v -u Administrator:password http://172.23.104.110:8093/query/service -d 'statement=insert into default (key, value) values("1", { "abcd": { "def": repeat("abcd", 29990), "arr": array_repeat(repeat("efgh", 1000), 5000)}}) returning *&memory_quota=1'

but if we do select * from default; where the only document is above, we are seeing the memory quota is exceeded, but the returning in insert will return the exact same document

insert into default (key a, value v ) select a, { "abcd": { "def": repeat("abcd", 29990), "arr": array_repeat(repeat("efgh", 1000), 5000)}} as v from ["1"] as a returning abcd.def ;

this does trigger memory quota error