fakevim: leave visual mode if entering insert mode

Merge-request: 96
Reviewed-by: hjk <qtc-committer@nokia.com>

src/plugins/fakevim/fakevimhandler.cpp

@@ -3001,6 +3001,7 @@ void FakeVimHandler::Private::enterInsertMode()
 {
     EDITOR(setCursorWidth(m_cursorWidth));
     EDITOR(setOverwriteMode(false));
+    leaveVisualMode();
     m_mode = InsertMode;
     m_lastInsertion.clear();
     m_beginEditBlock = true;