"Polling Interval" Does Not Validate Allowed Values Properly

The "Polling Interval" values are not consistent between what is allowed and the documentation. In fact, as long as a digit is included as the first character, any string following it is allowed.

From the documentation:

Polling Interval — Specify how often FishEye will check to see if there have been any new commits to the repository. Use the following terms to specify particular units of time: s, m, h, d, w, mo, y (for seconds, minutes, hours, days, weeks, months and years respectively). For example, 10s. The default value for this field is 60 seconds.

To reproduce:

1. Go to Administration > Repository Settings > Repositories.
2. Select a repository by clicking on its name.
3. Select "Updates".
4. Unselect the "Use the system default settings for updates" box.
5. Write anything as long as it starts with a digit. Example: 0monkeys
6. Hit "Save".