[gnome-builder] (10 commits) Non-fast-forward update to branch wip/chergert/session

[Christian Hergert <chergert src gnome org>]

The branch 'wip/chergert/session' 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:

  ec81bcd... context: add workbench backpointer
  b07fe3e... context: whitespace
  9a48359... context: set workbench after restoring
  55dbcf5... context: keep unsaved file alive during function call
  a4ff40c... WIP: editor: stub out editor session addin
  fbbec20... session: synthesize success upon missing state file

Commits added to the branch:

  d12acb7... flatpak: Cleanup Python dependencies (*)
  000a69b... flatpak: add back uncrustify (*)
  78868e3... vcs-monitor: use g_file_dup() to simplify leak tracking (*)
  387e066... vcs-monitor: fix leak of file information (*)
  e618d4b... session: synthesize success upon missing state file
  09f6553... context: add workbench backpointer
  2235038... context: whitespace
  1a96883... context: set workbench after restoring
  febd26c... context: keep unsaved file alive during function call
  566b659... WIP: editor: stub out editor session addin

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