100% repeatable, freshly rebooted N900, latest CSSU thumb, kernel 2.6.28.10-cssu3, forced rotation, no orientation lock enabled:
1a. landscape orientation, launch terminal (busybox 1.20.2power3+thumb0 here), touch screen to invoke vk, put a long line of "b" (or other, doesn`t matter), dismiss vk, put cursor inside line and invoke vk, put few "g" in the middle/beginning of the line of "b"s, dismiss vk, "g" are at the end of the line.
1b. exactly the same in portrait orientation.