<p dir="auto">When I'm using datetime picker component, there is a problem that when I chose the value, I cannot change it back to not choose a date state.</p>
<p dir="auto">Version: material-ui@0.19.1<br>
React: 15.6.1</p>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://github.com/callemall/material-ui/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<p dir="auto">There is similar issue <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="261836498" data-permission-text="Title is private" data-url="https://github.com/mui/material-ui/issues/8478" data-hovercard-type="issue" data-hovercard-url="/mui/material-ui/issues/8478/hovercard" href="https://github.com/mui/material-ui/issues/8478">#8478</a>, but it's closed and marked as invalid due to lack of example.</p>
<h2 dir="auto">Expected Behavior</h2>

<p dir="auto">Drawer sticks to the side, provided in <code class="notranslate">anchor</code> property (in this case, it's 'bottom').</p>
<h2 dir="auto">Current Behavior</h2>

<p dir="auto">Drawer ignores <code class="notranslate">anchor</code> property and sticks to the left side.</p>
<h2 dir="auto">Steps to Reproduce (for bugs)</h2>

<ol dir="auto">
<li>Open <a href="https://codesandbox.io/s/myn22zoy39" rel="nofollow">https://codesandbox.io/s/myn22zoy39</a></li>
<li>Observe Drawer on the left side</li>
<li></li>
<li></li>
</ol>
<h2 dir="auto">Context</h2>
    
<p dir="auto">Drawer wrapper has following css classes:<br>
<code class="notranslate">MuiPaper-root-19 MuiPaper-shadow0-21 MuiDrawer-paper-90 MiniDrawer-drawerPaper-310 MiniDrawer-drawerPaperClose-311 undefined</code>.<br>
I think bug is <a href="https://github.com/callemall/material-ui/blob/v1-beta/src/Drawer/Drawer.js#L202">here</a>, there should not be <code class="notranslate">type !== 'permanent'</code> check</p>
<h2 dir="auto">Your Environment</h2>

<table role="table">
<thead>
<tr>
<th>Tech</th>
<th>Version</th>
</tr>
</thead>
<tbody>
<tr>
<td>Material-UI</td>
<td>beta.17</td>
</tr>
<tr>
<td>React</td>
<td>15.5.3</td>
</tr>
<tr>
<td>browser</td>
<td>Chrome</td>
</tr>
<tr>
<td>etc</td>
<td></td>
</tr>
</tbody>
</table>