Make sure that collecting redline autostyles succeeds
This step was called separately in SwXMLExport::ExportAutoStyles_,
after collectAutoStyles. collectTextAutoStylesAndNodeExportOrder
(which is called from collectAutoStyles) sets mbCollected to true,
and then all the code checking mbCollected/isAutoStylesCollected
stops collecting autostyles.
This moves exportTrackedChanges call to the place where all auto-
styles are collected.
Change-Id: I3f4bd0e0ff906a35b69c052e34adb6d66ef80d48
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/166735
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Jenkins