Composer type ahead suggestion linked incorrectly [#15872]

[BiffTheUnderstudy]

In the main UI with the composer field visible, click or F2 to edit composer field. Typing composer name should suggest other composers based on local database. Instead, it appears to offer suggestions based on the Artist field.

[MiPi]

Thanks, tracked as https://www.ventismedia.com/mantis/view.php?id=15872