F-Spot modifies files on import - not clear what or why.

Binary package hint: f-spot

I decided to try F-Spot for the first time in a couple of years and while investigating problems with importing images I came across all the bugs related to it changing EXIF data without warning. I decided to see if this had happened to me (the bugs are reported as fixed in the latest package in Ubuntu Lucid) and I found that the modification date on several thousand of my files had been changed to the date/time they were imported. On comparing the EXIF data of a few images to the backups I have it would seem that it hasn't changed the dates and times the photos were taken, but diffing the files reports there are definitely discrepancies.

So what has F-Spot modified about my files without my permission or knowledge? I'm tempted to do a mass restore from my backups just in case but this simply should not happen with a simple import operation.

I was going to post this as a question but decided it's a bug in that 1. it happens unexpectedly and 2. shouldn't happen at all.

For info, I did not have the files copied to my Photos library so they are all in the original location I imported them from.

Thanks.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: f-spot 0.6.1.5-2ubuntu6
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic-pae 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic-pae i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Thu May 6 19:34:15 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100224.1)
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: f-spot