Toggle Finder sort order with AppleScript under Lion 10.7?
Solution 1:
This is a bit hacky, but changing the sort column before and after changing the sort direction seemed to work on Mountain Lion.
tell application "Finder"
tell list view options of window 1
set sort column to name column
tell column size column
if sort direction is normal then
set sort direction to reversed
else
set sort direction to normal
end if
end tell
set sort column to size column
end tell
end tell