[tracker] (2 commits) Non-fast-forward update to branch wip/carlosg/sqlite-3-35-workaround

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/sqlite-3-35-workaround' 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:

  a9aa8df... libtracker-data: Workaround SQLite 3.35.x bug
  26bc4c9... tests: Add test for OPTIONAL inside GRAPH ?g {}

Commits added to the branch:

  4c024b5... libtracker-data: Workaround SQLite 3.35.x bug
  8a28feb... tests: Add test for OPTIONAL inside GRAPH ?g {}