bnc#885548: Reset the default user to the document owner at the end.
bnc#885548: Reset the default user to the document owner at the end.

Otherwise the user name is set to the name of the user in the last revision
record, which will be used when recording new revisions.

Change-Id: I9b5e39c3b3a85614af67f86db9ed2bb3509a9e2b

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core