use None instead of pipeline.BUBBLE to indicate skips
use None instead of pipeline.BUBBLE to indicate skips

This makes the apply_choices coroutine run even for albums that are skipped or
still in the library. This (along with making things more predictable) lets the
apply_choices stage write the progress value as albums are retired even if they
are skipped.

shanemikel/beets,beetbox/beets,lightwang1/beets,sadatay/beets,jackwilsdon/beets,YetAnotherNerd/beets,artemutin/beets,bj-yinyan/beets,randybias/beets,jackwilsdon/beets,bj-yinyan/beets,tima/beets,MyTunesFreeMusic/privacy-policy,beetbox/beets,kareemallen/beets,arabenjamin/beets,Freso/beets,pkess/beets,diego-plan9/beets,kelvinhammond/beets,PierreRust/beets,shamangeorge/beets,diego-plan9/beets,jbaiter/beets,marcuskrahl/beets,mathstuf/beets,sampsyo/beets,SusannaMaria/beets,Andypsamp/CODjunit,mclearc/beets,moodboom/beets,Andypsamp/CODfinalJUNIT,lightwang1/beets,artemutin/beets,dfc/beets,asteven/beets,Freso/beets,andremiller/beets,gabrielaraujof/beets,asteven/beets,Andypsamp/CODjunit,dfc/beets,parapente/beets,jcoady9/beets,lengtche/beets,imsparsh/beets,Wen777/beets,jayme-github/beets,ruippeixotog/beets,jackwilsdon/beets,kareemallen/beets,Dishwishy/beets,SusannaMaria/beets,mried/beets,arabenjamin/beets,multikatt/beets,sadatay/beets,mathstuf/beets,diego-plan9/beets,madmouser1/beets,ttsda/beets,mclearc/beets,diego-plan9/beets,imsparsh/beets,gabrielaraujof/beets,ruippeixotog/beets,swt30/beets,SusannaMaria/beets,YetAnotherNerd/beets,swt30/beets,kareemallen/beets,drm00/beets,moodboom/beets,tima/beets,arabenjamin/beets,drm00/beets,Freso/beets,jmwatte/beets,ttsda/beets,andremiller/beets,marcuskrahl/beets,tima/beets,jcoady9/beets,mosesfistos1/beetbox,LordSputnik/beets,randybias/beets,Dishwishy/beets,krig/beets,kelvinhammond/beets,m-urban/beets,mosesfistos1/beetbox,Kraymer/beets,jayme-github/beets,lengtche/beets,jmwatte/beets,randybias/beets,sampsyo/beets,asteven/beets,shamangeorge/beets,Andypsamp/CODfinalJUNIT,ruippeixotog/beets,moodboom/beets,kelvinhammond/beets,madmouser1/beets,LordSputnik/beets,ttsda/beets,Freso/beets,shamangeorge/beets,pdf/beets,mried/beets,PierreRust/beets,mclearc/beets,beetbox/beets,MyTunesFreeMusic/privacy-policy,bj-yinyan/beets,m-urban/beets,asteven/beets,LordSputnik/beets,krig/beets,jcoady9/beets,imsparsh/beets,multikatt/beets,mried/beets,untitaker/beets,Andypsamp/CODjunit,Wen777/beets,artemutin/beets,pdf/beets,tima/beets,Wen777/beets,gabrielaraujof/beets,Andypsamp/CODjunit,sampsyo/beets,imsparsh/beets,Dishwishy/beets,parapente/beets,YetAnotherNerd/beets,untitaker/beets,mathstuf/beets,ruippeixotog/beets,gabrielaraujof/beets,SusannaMaria/beets,pkess/beets,PierreRust/beets,Kraymer/beets,sadatay/beets,untitaker/beets,Dishwishy/beets,shanemikel/beets,krig/beets,lightwang1/beets,madmouser1/beets,m-urban/beets,Kraymer/beets,drm00/beets,pkess/beets,ngokevin/beets,jbaiter/beets,Andypsamp/CODfinalJUNIT,madmouser1/beets,arabenjamin/beets,drm00/beets,shanemikel/beets,mathstuf/beets,dfc/beets,xsteadfastx/beets,Andypsamp/CODfinalJUNIT,dfc/beets,kelvinhammond/beets,lengtche/beets,ibmibmibm/beets,lengtche/beets,multikatt/beets,Andypsamp/CODjunit,mosesfistos1/beetbox,sampsyo/beets,untitaker/beets,m-urban/beets,ngokevin/beets,ttsda/beets,MyTunesFreeMusic/privacy-policy,multikatt/beets,xsteadfastx/beets,beetbox/beets,mosesfistos1/beetbox,kareemallen/beets,ibmibmibm/beets,LordSputnik/beets,lightwang1/beets,PierreRust/beets,ibmibmibm/beets,jcoady9/beets,YetAnotherNerd/beets,parapente/beets,andremiller/beets,Kraymer/beets,marcuskrahl/beets,marcuskrahl/beets,xsteadfastx/beets,jackwilsdon/beets,swt30/beets,artemutin/beets,parapente/beets,jmwatte/beets,bj-yinyan/beets,jmwatte/beets,mried/beets,pkess/beets,moodboom/beets,ibmibmibm/beets,shanemikel/beets,randybias/beets,sadatay/beets,swt30/beets,MyTunesFreeMusic/privacy-policy,shamangeorge/beets,aspidites/beets,Andypsamp/CODfinalJUNIT,xsteadfastx/beets,aspidites/beets