Steps to reproduce:
I am not able to reproduce the crash. I have tried to upload the image in question (påske06 099.jpg), and it completed successfully. I have also tried to upload all 43 images again, and that did not produce a crash.

Stack trace:
uploading 43
open uri = file:///home/say/Photos/2007/4/5/Påske06 099.jpg
open uri = file:///home/say/Photos/2007/4/5/Påske06 099.jpg
value = f-spot version 0.3.5 len = 20
value = 2007:05:03 12:54:50 len = 19
Stacktrace:

  at (wrapper managed-to-native) Exif.ExifData.exif_data_save_data (System.Runtime.InteropServices.HandleRef,intptr&,uint&) <0x00004>
  at (wrapper managed-to-native) Exif.ExifData.exif_data_save_data (System.Runtime.InteropServices.HandleRef,intptr&,uint&) <0xffffffff>
  at Exif.ExifData.Save () <0x0003a>
  at JpegHeader.SetExif (Exif.ExifData) <0x0001f>
  at FSpot.JpegFile.SaveMetaData (System.IO.Stream,System.IO.Stream) <0x0004e>
  at FSpot.JpegFile.Save (Gdk.Pixbuf,System.IO.Stream) <0x00157>
  at FSpot.Filters.ResizeFilter.Convert (FSpot.Filters.FilterRequest) <0x001a0>
  at FSpot.Filters.FilterSet.Convert (FSpot.Filters.FilterRequest) <0x000ee>
  at FSpot.GoogleExport.Upload () <0x002b8>
  at (wrapper delegate-invoke) System.MulticastDelegate.invoke_void () <0xffffffff>
  at (wrapper runtime-invoke) System.Object.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

        f-spot [0x818f7de]
        f-spot [0x8171be4]
        [0xffffe440]
        /usr/lib/libexif.so.12(exif_data_save_data+0x108) [0xb263d658]
        [0xb10f04cf]
        [0xb10f03f3]
        [0xb10f0350]
        [0xb10f0197]
        [0xb10f9f28]
        [0xb10f9709]
        [0xb10f944f]
        [0xb1426a49]
        [0xb2ad4888]
        [0xb6c6f6f9]
        f-spot [0x8171aaf]
        f-spot(mono_runtime_invoke+0x27) [0x80b038f]
        f-spot(mono_runtime_delegate_invoke+0x62) [0x80b0617]
        f-spot [0x80e4f6e]
        f-spot [0x812c50d]
        f-spot [0x8145972]
        /lib/tls/i686/cmov/libpthread.so.0 [0xb7e2831b]
        /lib/tls/i686/cmov/libc.so.6(clone+0x5e) [0xb7d8957e]

Debug info from gdb:

(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1211393808 (LWP 30232)]
[New Thread -1259914352 (LWP 31986)]
[New Thread -1363391600 (LWP 31862)]
[New Thread -1329140848 (LWP 31858)]
[New Thread -1328088176 (LWP 31855)]
[New Thread -1330193520 (LWP 31844)]
[New Thread -1261364336 (LWP 31462)]
[New Thread -1245832304 (LWP 31447)]
[New Thread -1326523504 (LWP 30815)]
[New Thread -1320727664 (LWP 30804)]
[New Thread -1325470832 (LWP 30788)]
[New Thread -1324418160 (LWP 30742)]
[New Thread -1332896880 (LWP 30251)]
[New Thread -1298359408 (LWP 30242)]
[New Thread -1297306736 (LWP 30241)]
[New Thread -1222788208 (LWP 30238)]
[New Thread -1217012848 (LWP 30237)]
(no debugging symbols found)
[...]
(no debugging symbols found)
0xffffe410 in __kernel_vsyscall ()
  17 Thread -1217012848 (LWP 30237)  0xffffe410 in __kernel_vsyscall ()
  16 Thread -1222788208 (LWP 30238)  0xffffe410 in __kernel_vsyscall ()
  15 Thread -1297306736 (LWP 30241)  0xffffe410 in __kernel_vsyscall ()
  14 Thread -1298359408 (LWP 30242)  0xffffe410 in __kernel_vsyscall ()
  13 Thread -1332896880 (LWP 30251)  0xffffe410 in __kernel_vsyscall ()
  12 Thread -1324418160 (LWP 30742)  0xffffe410 in __kernel_vsyscall ()
  11 Thread -1325470832 (LWP 30788)  0xffffe410 in __kernel_vsyscall ()
  10 Thread -1320727664 (LWP 30804)  0xffffe410 in __kernel_vsyscall ()
  9 Thread -1326523504 (LWP 30815)  0xffffe410 in __kernel_vsyscall ()
  8 Thread -1245832304 (LWP 31447)  0xffffe410 in __kernel_vsyscall ()
  7 Thread -1261364336 (LWP 31462)  0xffffe410 in __kernel_vsyscall ()
  6 Thread -1330193520 (LWP 31844)  0xffffe410 in __kernel_vsyscall ()
  5 Thread -1328088176 (LWP 31855)  0xffffe410 in __kernel_vsyscall ()
  4 Thread -1329140848 (LWP 31858)  0xffffe410 in __kernel_vsyscall ()
  3 Thread -1363391600 (LWP 31862)  0xffffe410 in __kernel_vsyscall ()
  2 Thread -1259914352 (LWP 31986)  0xffffe410 in __kernel_vsyscall ()
  1 Thread -1211393808 (LWP 30232)  0xffffe410 in __kernel_vsyscall ()

+ Trace 132093

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

Aborted (core dumped)

Other information:
I did change a few settings for the album in the web interface (most notably the album date). Maybe that's related?