Feature Request: A way to tell last.fm fingerprint which fields to fill

[PeterPall]

If I want to use the last.fm fingerprint feature just to fill in a song's name the song sometimes is assigned to a different album it appeared on as well instead of leaving it assigned to the album I bought it with. There should be a way of telling the last.fm fingerprint plug-in which of the fields it is allowed to replace.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: banshee-extension-lastfmfingerprint 2.2.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
NonfreeKernelModules: nvidia wl
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Sun Oct 23 10:36:38 2011
EcryptfsInUse: Yes
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LC_TIME=de_DE.UTF-8
SourcePackage: banshee-community-extensions
UpgradeStatus: No upgrade log present (probably fresh install)