iPhone text editor autoscrolls to top when input is long

[mtacchino]

When the TextInput is overflowed and scrollable, scrolling jumps to where the cursor is at the top of the input

To Reproduce:

1. Enter enough text to have the TextInput scrollable
2. Scroll to the middle of the TextInput
3. Type anything

The input will scroll unexpectedly

Expected: There should be no scrolling in this situation