try again - if a channel has a mirror and preferred_mirror is set to that mirror, but it is no longer valid, return the parent channel instead
try again - if a channel has a mirror and preferred_mirror
is set to that mirror, but it is no longer valid, return the
parent channel instead


marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core,marcosptf/pear-core