Link styled as Button in Navbar is too big

Created by: 1st

Hello!

When I insert <button> to navbar-nav - all works fine. But when I try to insert <a class="btn btn-default navbar-btn"> - I see too big button.

Please fix this bug in the next release of the best web UI framework!

    <!-- Fixed navbar -->
    <header class="navbar navbar-default navbar-fixed-top" role="banner">
    <!-- <div class="navbar navbar-default navbar-fixed-top"> -->
        <div class="container">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".top_menu.navbar-collapse">
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="/">SITE.com</a>
            </div>
            <div class="top_menu collapse navbar-collapse">
                <ul class="nav navbar-nav navbar-right">
                    <li><a class="btn btn-success navbar-btn">Sign in 2</a></li>
                    <li><a href="/register">Registration</a></li>
                    <li><button type="button" class="btn btn-success navbar-btn">Sign in</button></li>
                </ul>
            </div><!--/.nav-collapse -->
        </div>
    <!-- </div> -->
    </header>

Sign in - looks good. Sign in 2 - looks bad :-(

Thanks. Anton