Tags return to default after rip is complete

[GHDiego]

Several tracks have more than one artist, and the artist tag is set by default with {artist} (only one, the first one in the list of {artists}). If I set the config file with artist = {artists}, while the file is downloading the artist tag is filled with {artists} but when the rip is complete, it resets and it is written to the file as artist = {artist}.

Is there any solution to this?

Thanks.