Clarify .copy() semantic for multidict proxy
Clarify .copy() semantic for multidict proxy

AraHaanOrg/aiohttp,juliatem/aiohttp,noplay/aiohttp,esaezgil/aiohttp,rutsky/aiohttp,singulared/aiohttp,iksteen/aiohttp,pfreixes/aiohttp,vedun/aiohttp,vaskalas/aiohttp,decentfox/aiohttp,saghul/aiohttp,alunduil/aiohttp,alex-eri/aiohttp-1,mind1master/aiohttp,Insoleet/aiohttp,decentfox/aiohttp,rutsky/aiohttp,jashandeep-sohi/aiohttp,alex-eri/aiohttp-1,playpauseandstop/aiohttp,danielnelson/aiohttp,esaezgil/aiohttp,AlexLisovoy/aiohttp,z2v/aiohttp,AraHaanOrg/aiohttp,jashandeep-sohi/aiohttp,decentfox/aiohttp,jettify/aiohttp,panda73111/aiohttp,z2v/aiohttp,elastic-coders/aiohttp,iksteen/aiohttp,moden-py/aiohttp,AlexLisovoy/aiohttp,elastic-coders/aiohttp,pfreixes/aiohttp,saghul/aiohttp,arthurdarcet/aiohttp,z2v/aiohttp,Eyepea/aiohttp,alexsdutton/aiohttp,singulared/aiohttp,alex-eri/aiohttp-1,morgan-del/aiohttp,KeepSafe/aiohttp,andyaguiar/aiohttp,juliatem/aiohttp,alexsdutton/aiohttp,vasylbo/aiohttp,vaskalas/aiohttp,flying-sheep/aiohttp,panda73111/aiohttp,sterwill/aiohttp,mind1master/aiohttp,jojurajan/aiohttp,rutsky/aiohttp,vaskalas/aiohttp,panda73111/aiohttp,avanov/aiohttp,hellysmile/aiohttp,jettify/aiohttp,jashandeep-sohi/aiohttp,arthurdarcet/aiohttp,KeepSafe/aiohttp,noplay/aiohttp,jettify/aiohttp,elastic-coders/aiohttp,jojurajan/aiohttp,Srogozins/aiohttp,esaezgil/aiohttp,pathcl/aiohttp,KeepSafe/aiohttp,arthurdarcet/aiohttp,hellysmile/aiohttp,mind1master/aiohttp,noodle-learns-programming/aiohttp,singulared/aiohttp,moden-py/aiohttp,moden-py/aiohttp