Try dragging each of the following links. In each case, the link text should appear correctly (not flipped) in the drag image, above the URL.
There are three separate code paths, due to the canUseFastRenderer and shouldUseATSU functions.
WebKit renderer, using CG: Drag me to your leader
WebKit renderer, using ATSUI because of the अ: Drag me अ to your leader
Cocoa, because of the א: Drag me א to your leader