[Tracker] miner-fs, files update and user metadata

[Michele Tameni <michele tameni it>]

Hi all, 
I think i've found a big problem and i want share my concern with you all.

The use case:
I save a photo ( photo.tif ) in my home directory, then miner-fs extract metadata from the file and save it to tracker. Ok wow, all great. I open my shiny Photo apps, i see my new file, and i assign a new title (nie:title) to it. then i open photo.tif with gimp, cropt it, set saturation etc, save the file. miner-fs see the modification so, reindex the file... oops my title are gone... and with it every other user entered metadata.

I don't think this is expected, at least for the user.

I found this issue trying to get http://live.gnome.org/Tracker/Discussion/DirectNotification working. Same problem here... every metadata wrote by the application who creates the file are gone after the miner-fs analyze the file.

miner-fs add a "drop graph....." before the insert query, and as frade told me isn't trivial to remove.
Is this expected? any idea on how to work around or fix it?

The use case was tested today with git HEAD.

Thanks

Michele

-- 
michele tameni