photos look bad after v0.6 upgrade

[Daniel Drake <dan reactivated net>]

Hi,

After upgrading to f-spot 0.6.1.1 from 0.5.0.3, my photos look bad. Or 
at least different, and I feel that the previous rendering looked better.

I confirmed that it's definitely a f-spot change causing this (as 
opposed to a change in another system component) by then doing a 
downgrade-upgrade cycle without changing any other packages. I also 
worked with clean databases both times. I took some screenshots along 
the way.

Here's an example: original full-res photo:
http://dev.gentoo.org/~dsd/20090905/dsc03056-1.jpg

Here is a partial screenshot of how f-spot 0.5 rendered this photo at 
default resolution to fit my screen:
http://dev.gentoo.org/~dsd/20090905/fspot05-smooth.png

and the same section from the 0.6 rendering:
http://dev.gentoo.org/~dsd/20090905/fspot06-jagged.png

Look at the edges "Nepalica" text. They are clearly more jagged in 0.6. 
Also the "Bhaktapur" text looks less clear.

Any ideas as to why this might be?

I was hoping to downgrade to 0.5 (at least temporarily) to get good 
image quality again, but the 0.6 upgrade seems to have automatically 
upgraded my database and made it incompatible. Did it create a backup 
before doing so?

Thanks,
Daniel