Wish List: disc / season behavior in keyword hierarchy

Hello,

Its great the latest version considers disc when sorting by track. I'd like to request another feature to help with the presentation and navigation of playlists.

Request:
When using the disc / season keyword in the hierarchy, if the tag field is blank do not generate a 'disc 0' tree branch. Only create disc 1, disc2, disc n, if the disc tag is populated. I would not ignore a value of disc 0 since this can be used for specials, one-offs, and bonus material.

Value:
Some classical releases and boxsets have many discs so navigation by track alone is cumbersome. Adding season / discs helps this immensely. However, this has an undesired side effect of single disc releases having a purposeless 'disc 0' tree branch, even though the disc tag is not populated.

Thanks,