Renaming folders/files does not sync while network interface is OFF

1. install Nuxeo 7.10
2. install Drive 2.4.6
3. use Administrator account and enable synchronization on Personal Workspace
4. Client 1: configure Drive client to use Administrator user
5. Client 1: create 10 folders
6. Client 1: create 250 files in each folders
7. Client 1: use attached scripts to do it
8. Client 1: wait for synchronization
9. Server: double-check the files are synchronized correctly
10. Client 2: install Drive 2.4.6 on a second client
11. Client 2: configure Drive client to use Administrator user
12. Client 2: wait for synchronization
13. Client 2: observe the folders and files and synchronized
14. Client 2: disable the network card (either wifi or cable)
15. Client 2: wait for Nuxeo client systray icon to switch to grey
16. Client 1: use the renameFoldersAndFiles.sh in the synchronized folder to rename all the files and folders
17. Client 1: wait for synchronization
18. Server: double-check the files and folders are renamed
19. Client 2: enable network card
20. Client 2: wait for synchronization
21. Client 2: only the folders are renamed

This scenario also happens when turning off or exiting Nuxeo Drive client instead of disabling the network card.