Actually, looking at this a bit closer, this _is_ in fact a nautilus issue.
It is caused by the 02_additional_marge_for_unity.patch in nautilus that assumes (incorrectly) that the unity launcher is always 66 pixels wide:
+#define UNITY_LAUNCHER_WIDTH 66
+ if (under_unity_session && (x == UNITY_LAUNCHER_WIDTH))
Since the default launcher size has changed, and is now ajustable in g-c-c, this assumption is wrong.
Actually, looking at this a bit closer, this _is_ in fact a nautilus issue.
It is caused by the 02_additional_ marge_for_ unity.patch in nautilus that assumes (incorrectly) that the unity launcher is always 66 pixels wide:
+#define UNITY_LAUNCHER_ WIDTH 66
+ if (under_ unity_session && (x == UNITY_LAUNCHER_ WIDTH))
Since the default launcher size has changed, and is now ajustable in g-c-c, this assumption is wrong.