dir=dup/v2
base=none
-- .git/empty --
empty file to mark repository root
-- dup/go.mod --
module example.com/dup

go 1.13
-- dup/v2/go.mod --
module example.com/dup/v2

go 1.13
-- want --
Suggested version: v2.0.0 (with tag dup/v2.0.0)