gl-renderer: Vertex clipping optimizations break rendering of rotated clients
Commit a4d31fa8 ("gl-renderer: Decouple coord space transformation from clipper") from !1156 (merged) breaks border rendering of rotated clients.
Commit a4d31fa8 ("gl-renderer: Decouple coord space transformation from clipper") from !1156 (merged) breaks border rendering of rotated clients.