[gtk] Non-fast-forward update to branch wip/sadiq/model-fixes

[Mohammed Sadiq <pksadiq src gnome org>]

The branch 'wip/sadiq/model-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:

  4fcdcd3... treelistmodel: Fix signal emission for passthrough

Commits added to the branch:

  9e3e9e8... treelistmodel: Fix signal emission on row destroy