Test deleting newline and then inserting.

This is currently failing in Firefox.

tests/webdriver/unit/delete.rb

@@ -64,6 +64,25 @@ def run_delete_test(initial, delete_delta, err_msg)
     run_delete_test initial, delta, "Failed deleting formatted, newlined text."
   end
 
+  it "should delete newline from empty document" do
+    initial = { "startLength" => 0,
+                "endLength" => 1,
+                "ops" => [{ "value" => "\n"}]
+    }
+
+    reset_scribe initial
+    @editor.send_keys :enter
+    @editor.send_keys :backspace
+    @editor.send_keys "a"
+    expected = { "startLength" => 0,
+                 "endLength" => 2,
+                 "ops" => [{ "value" => "a\n", "attributes" => {} }]
+    }
+    assert ScribeDriver::JS.editor_delta_equals(expected),
+      "Deleting a newline and then inserting into the empty document fails."
+
+  end
+
   it "should pull formatting onto previous line when newline is deleted" do
     initial = { "startLength" => 0,
               "endLength" => 10,