Search add cursor doesn’t account for cursor position

[PenguinPolity]

If adding cursors using search register (shift+n), the direction (position within selection) of the first cursor can differ from subsequent cursors if the first cursor is not at the end.

You can end up with the following cursors:

|Test
Test|
Test|

Ideally, the cursor position would be remembered for each subsequent cursor. Thanks for the great extension.