Merge pull request #103 from nickago/MM-1293

MM-1293 Updated file display key to avoid child flattening

web/react/components/post_body.jsx

@@ -102,7 +102,7 @@ module.exports = React.createClass({
                     images.push(filenames[i]);
                 } else if (i < Constants.MAX_DISPLAY_FILES) {
                     postFiles.push(
-                        <div className="post-image__column custom-file" key={fileInfo.name}>
+                        <div className="post-image__column custom-file" key={fileInfo.name+i}>
                             <a href={fileInfo.path+"."+fileInfo.ext} download={fileInfo.name+"."+fileInfo.ext}>
                                 <div className={"file-icon "+utils.getIconClassName(type)}/>
                             </a>