Tab & Shift+Tab not loop in forwarding lines

In “Settings…” panel, edit focus does not loop in forwarding lines after press tab and/or shift-tab.

Originally reported by @mlist:

@clqiao Please take a look at this issue

Cocoa handles tab-key incorrectly on view-based table, I’m trying to fix it.

This issue will be closed with “wont-fix”, as clarified in this comment: