[tracker] (4 commits) Non-fast-forward update to branch wip/carlosg/more-bus-fixes

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/more-bus-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:

  458b2a4... libtracker-sparql/bus: Plug potential leak on error paths
  873db2a... libtracker-sparql/bus: Avoid reentrancy on bus batches
  9788108... libtracker-sparql/bus: Shuffle cursor row offsets maximum s
  806431a... libtracker-sparql/bus: Check return value of function

Commits added to the branch:

  39ccedb... libtracker-sparql/bus: Plug potential leak on error paths
  d640977... libtracker-sparql/bus: Avoid reentrancy on bus batches
  90eff3e... libtracker-sparql/bus: Shuffle cursor row offsets maximum s
  0b183d9... libtracker-sparql/bus: Check return value of function