VIM-404 Fixed 'O' at the first line

index.txt

@@ -65,6 +65,8 @@ tag             char          note action in Normal mode        ~
 |count|         9                       "
 |F|             F{char}         1  cursor to the Nth occurrence of {char} to
                                    the left
+|O|             O               2  begin a new line above the cursor and
+                                   insert text, repeat N times
 |P|             ["x]P           2  put the text [from buffer x] before the
                                    cursor N times
 |T|             T{char}         1  cursor till after Nth occurrence of {char}

src/com/maddyhome/idea/vim/group/ChangeGroup.java

@@ -171,9 +171,7 @@ public class ChangeGroup extends AbstractActionGroup {
         if (state.getMode() != CommandState.Mode.REPEAT) {
           KeyHandler.executeAction("VimEditorEnter", context);
         }
-        else {
-          MotionGroup.moveCaret(editor, CommandGroups.getInstance().getMotion().moveCaretVertical(editor, -1));
-        }
+        MotionGroup.moveCaret(editor, CommandGroups.getInstance().getMotion().moveCaretVertical(editor, -1));
       }
     }
     else {

test/org/jetbrains/plugins/ideavim/action/ChangeActionTest.java

@@ -240,6 +240,13 @@ public class ChangeActionTest extends VimTestCase {
            "fo<caret>\n");
   }
 
+  // VIM-404 |O|
+  public void testInsertNewLineAboveFirstLine() {
+    doTest(stringToKeys("Obar"),
+           "fo<caret>o\n",
+           "bar\nfoo\n");
+  }
+
   private void doTest(final List<KeyStroke> keys, String before, String after) {
     myFixture.configureByText("a.java", before);
     final Editor editor = myFixture.getEditor();