Refresh in Browse FileSystem UI is buggy

Description

When using the refresh button (F5), the web ui's browse filesystem page acts strangely if files are modified.

To reproduce:
1. Create a few files in Tachyon (same level directory)
2. View the files in the web UI
3. Create some more files in the same directory
4. Press Refresh

What may happen is some of the files get replaced by other files, but not all the files will be there unless the user manually clicks on the Browse File System tab in the nav bar.

Environment

None

Assignee

Unassigned

Reporter

Calvin Jia

Labels

Components

Affects versions

Priority

Minor