=== TC 1 ===
 1. Click below existing horizontal line
 1. Start typing
 * New text should be added below line. Cursor should not jump above line. No error should be thrown into console or status bar.
=== TC 2 ===
 1. Clear all, insert horizontal line
 1. Click below added line
 1. Start typing
 * New text should be added below line. Cursor should not jump above line. No error should be thrown into console or status bar.