Tab completion loses groups when tabbing (3.17 regression)

[bdw429s]

In JLine 3.16.0 I can keep pressing tab to iterate through my options as shown. Notice I'm grouping the completion candidates into groups.

However, in 3.17.1 the groups display initially like above when I press tab, but when I press tab subsequent times to begin toggling through the options, the screen redraws without any of the groups.

This regression remains in the 3.17.2-SNAPSHOT build.

[bdw429s]

cc/ @mattirn

[mattirn]

Navigating grouped candidates has been disabled in #580.
I can add JLine option to preserve the old behaviour.

[bdw429s]

@mattirn Wait, what? Completion groups are awesome! Why would you disabled them? My console app regularly has 3 or 4 different groups for all the possible completion candidates and I'd hate to see that functionality go away as it really helps organize what's on the screen.

Without the nice, clear grouping in the UI, the same list is just a jumbled mess

I'm concerned about features like this being dropped in a minor version release without even having any conversation on the JLine mailing list about it.