gnus-auto-goto-ignores

gnus-auto-goto-ignores is a variable defined in `gnus-sum.el'.
Its value is

unfetched

Documentation:
*Says how to handle unfetched articles when maneuvering.

This variable can either be the symbols nil (maneuver to any
article), `undownloaded' (maneuvering while unplugged ignores articles
that have not been fetched), `always-undownloaded' (maneuvering always
ignores articles that have not been fetched), `unfetched' (maneuvering
ignores articles whose headers have not been fetched).

NOTE: The list of unfetched articles will always be nil when plugged
and, when unplugged, a subset of the undownloaded article list.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 22.1 of Emacs.