[tracker] (8 commits) Non-fast-forward update to branch wip/carlosg/coverity-fixes

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/coverity-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:

  ee6a89e... libtracker-data: Add _optional() to complement _accept()
  21b1a7b... libtracker-data: Propagate possible errors from resource_bu
  7b845db... libtracker-data: Drop dead call
  e0143fa... libtracker-data: Apply silent treatment to the correct erro
  748acf4... libtracker-data: Ensure an error is set
  fa8a34a... libtracker-fts: Remove dead check
  0f1bfb9... libtracker-data: Ensure variable is freed on error conditio
  06461bc... libtracker-data: Drop always-true statement

Commits added to the branch:

  f44a37d... libtracker-data: Add _optional() to complement _accept()
  e39a475... libtracker-data: Propagate possible errors from resource_bu
  ea3fbec... libtracker-data: Drop dead call
  c649903... libtracker-data: Apply silent treatment to the correct erro
  d6a6518... libtracker-data: Ensure an error is set
  99eb08c... libtracker-fts: Remove dead check
  57a863f... libtracker-data: Ensure variable is freed on error conditio
  bd07941... libtracker-data: Drop always-true statement