[gimp] (3 commits) Non-fast-forward update to branch wip/Jehan/debugging-flatpak-bisect

[Jehan <jehanp src gnome org>]

The branch 'wip/Jehan/debugging-flatpak-bisect' 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:

  2d123b8... app: fix wrong unref-ing.
  b978d58... build: update the master flatpak.
  83c73f5... build: update OpenEXR in our nightly flatpak manifest.
  0457867... build: forgot a patch for a dependency of the flatpak build

Commits added to the branch:

  77e2a73... build: update the master flatpak.
  7e41394... build: update OpenEXR in our nightly flatpak manifest.
  f4dad7d... build: forgot a patch for a dependency of the flatpak build