[fix] failure of restoring `max_filesize_ext` settings
[fix] failure of restoring `max_filesize_ext` settings

sunny4381/shirasagi,tany/ss,masakiooba/shirasagi-1,toyodundy/shirasagi,mizoki/shirasagi,tany/ss,bee01/shirasagi,shirasagi/ss-handson,t-wata-cldt/shirasagi,koba5884/shirasagi,ShinjiTanimoto/shirasagi,MasakiInaya/shirasagi,shirasagi/ss-handson,kaosf/shirasagi,t-wata-cldt/shirasagi,toyodundy/shirasagi,toyodundy/shirasagi,kaosf/shirasagi,ShinjiTanimoto/shirasagi,mizoki/shirasagi,bee01/shirasagi,hotmix/shirasagi,mizoki/shirasagi,tany/ss,bee01/shirasagi,masakiooba/shirasagi-1,shirasagi/shirasagi,kaosf/shirasagi,ShinjiTanimoto/shirasagi,shirasagi/ss-handson,itowtips/shirasagi,koba5884/shirasagi,MasakiInaya/shirasagi,mizoki/shirasagi,MasakiInaya/shirasagi,sunny4381/shirasagi,tany/ss,kaosf/shirasagi,masakiooba/shirasagi-1,masakiooba/shirasagi-1,itowtips/shirasagi,hotmix/shirasagi,t-wata-cldt/shirasagi,itowtips/shirasagi,koba5884/shirasagi,toyodundy/shirasagi,hotmix/shirasagi,ShinjiTanimoto/shirasagi,shirasagi/ss-handson,shirasagi/shirasagi,koba5884/shirasagi,MasakiInaya/shirasagi,itowtips/shirasagi,sunny4381/shirasagi,t-wata-cldt/shirasagi,hotmix/shirasagi,bee01/shirasagi,sunny4381/shirasagi,shirasagi/shirasagi,shirasagi/shirasagi