db.TableName.OrderByFieldName() works but shouldn't

[hmobius]

If I call OrderBy() directly on a table reference without a base command (All, FindAll etc), I'd expect a NullReferenceException to be thrown because there's no command to qualify. This works if I call any of the following

db.Albums.OrderBy();
db.Albums.OrderBy(db.Albums.ArtistId);
db.Albums.OrderBy(db["Albums"]["ArtistId"]);

But if I call

db.Albums.OrderByArtistId();

The albums table is returned ordered by artistId. I'd expect this last call not to run.

[markrendle]

Too hard to fix.