Network indexed medias get deleted and reindexed on each run

on each run:

• media gets deleted from the media library,
• found again and reparsed,
• the thumbnail is regenerated:

> grep "Scrubs%20%5B1X03%5D.avi"  lol.log 
[00005655235b6d20] medialibrary medialibrary debug: src/discoverer/FsDiscoverer.cpp:375 checkFiles File smb://192.168.1.2:445/Public/Samples/samples/avi/Scrubs/Scrubs%20%5B1X03%5D.avi not found on filesystem, deleting it
[00005655235b6d20] medialibrary medialibrary debug: src/parser/ParserWorker.cpp:192 mainloop Executing libvlccore extraction task on smb://192.168.1.2/Public/Samples/samples/avi/Scrubs/Scrubs%20%5B1X03%5D.avi
[00005655235b6d20] medialibrary medialibrary debug: src/parser/ParserWorker.cpp:214 mainloop Done executing libvlccore extraction task on smb://192.168.1.2/Public/Samples/samples/avi/Scrubs/Scrubs%20%5B1X03%5D.avi in 3622ms. Result: 1
[00005655235b6d20] medialibrary medialibrary debug: src/parser/ParserWorker.cpp:192 mainloop Executing Metadata task on smb://192.168.1.2/Public/Samples/samples/avi/Scrubs/Scrubs%20%5B1X03%5D.avi
[00005655235b6d20] medialibrary medialibrary debug: src/metadata_services/MetadataParser.cpp:469 createFileAndMedia Adding smb://192.168.1.2/Public/Samples/samples/avi/Scrubs/Scrubs%20%5B1X03%5D.avi
[00005655235b6d20] medialibrary medialibrary debug: src/parser/ParserWorker.cpp:214 mainloop Done executing Metadata task on smb://192.168.1.2/Public/Samples/samples/avi/Scrubs/Scrubs%20%5B1X03%5D.avi in 20ms. Result: 1
[00005655235b6d20] medialibrary medialibrary debug: src/thumbnails/ThumbnailerWorker.

see logs and database enclosed

lol.log ml.db

This might be related to #125 (closed)

environment:

• Medias comes from a samba share
• vlc version: 931b232536 (+ ml->setDiscoverNetworkEnabled( true ); )
• medialibrary verions: 18148bca