[gnome-music] (9 commits) Non-fast-forward update to branch wip/jfelder/artistview-fixes

[Jean Felder <jfelder src gnome org>]

The branch 'wip/jfelder/artistview-fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  9e4bd8c... baseview: Apply selection mode changes for the visible view
  7d602a6... coreartist: Load the model only if the artist is selected
  b000197... coremodel: Load the model only if the album is selected
  4933fe9... songwidget: Do not display dnd handles when show_all is cal
  df89173... artistalbumswidget: Prevent the albums from being selectabl
  fad5575... disclistboxwidget: Do not display disc label when setting i
  0b20401... artistalbumwidget: Correctly set discbox properties
  b701317... artistalbumswidget: Simplify _on_model_items_changed

Commits added to the branch:

  2568f87... coremodel: Correctly disconnect items-changed for player mo (*)
  3966b8f... baseview: Apply selection mode changes for the visible view
  225610f... coreartist: Load the model only if the artist is selected
  40759dd... coremodel: Load the model only if the album is selected
  a732ce1... songwidget: Do not display dnd handles when show_all is cal
  aa72728... artistalbumswidget: Prevent the albums from being selectabl
  072886b... disclistboxwidget: Do not display disc label when setting i
  ad223b8... artistalbumwidget: Correctly set discbox properties
  cca03dd... artistalbumswidget: Simplify _on_model_items_changed

(*) This commit already existed in another branch; no separate mail sent