[tracker] (5 commits) Non-fast-forward update to branch wip/carlosg/coverity-warnings

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/coverity-warnings' 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:

  210cfee... libtracker-sparql: Plug leak on API misuse
  457b481... libtracker-data: Plug leak
  8aeac3a... portal: "Plug" leak
  768fabc... libtracker-data: Explicitly check for return value
  16e22cd... libtracker-data: Reorder unref call

Commits added to the branch:

  fa2def8... libtracker-sparql: Plug leak on API misuse
  cf6cb32... libtracker-data: Plug leak
  781d6e7... portal: "Plug" leak
  314d2be... libtracker-data: Explicitly check for return value
  582ab94... libtracker-data: Reorder unref call