make sure we set usn when pulling in dconf from apkg
make sure we set usn when pulling in dconf from apkg

hssm/anki,eduOS/anki,LucasCabello/anki,hssm/anki,florianjacob/anki,jkitching/anki,Arthaey/anki,ospalh/libanki3,go38/anki,Stvad/anki,subfusc/anki,holycrepe/anki,xuewenfei/anki,sunclx/anki,kenjhim/anki,socialpercon/anki-1,abeyer/anki