Is this the expected behavior?

1. Create an empty org file
2. Insert
* Test
* Test 2
3. With the cursor at Test, hit C-x n s to narrow the view to the Test
subtree
4. Hit C-c C-s to schedule the line at any date.

As a result, the SCHEDULED keyword is _not_ included in the narrow view,
and inserting things after the Test heading moves the SCHEDULED keyword
away from its second-line position.

Cheers,
Michaël