Fix random jumps when moving cursor in TUI repository table (bsc#1177…

…145)

In ncurses, ChangeWidget(:table, :CurrentItem, ...) will be wrong for sorted
tables (which is the default now).
It is related to the ChangeWidget(:table, Cell(.., ..), ...) bug, bsc#1165388

This is a workaround: removing the unnecessary ChangeWidget.

src/lib/packager/clients/repositories.rb

@@ -1039,10 +1039,8 @@ def SummaryDialog
 
       exit = false
       begin
-        if !current.nil? && Ops.greater_or_equal(current, 0)
-          UI.ChangeWidget(Id(:table), :CurrentItem, current)
-          fillCurrentRepoInfo
-        end
+        current = -1 if current.nil?
+        fillCurrentRepoInfo if current >= 0
 
         current = -1