use null as the fallback when the etag cannot be resolved
use null as the fallback when the etag cannot be resolved

desktop/desktop,shiftkey/desktop,kactus-io/kactus,artivilla/desktop,desktop/desktop,say25/desktop,shiftkey/desktop,kactus-io/kactus,j-f1/forked-desktop,j-f1/forked-desktop,j-f1/forked-desktop,kactus-io/kactus,j-f1/forked-desktop,desktop/desktop,say25/desktop,desktop/desktop,kactus-io/kactus,shiftkey/desktop,say25/desktop,artivilla/desktop,artivilla/desktop,say25/desktop,artivilla/desktop,shiftkey/desktop