.help-block loses its margin-top if it comes after a .input-prepend

Created by: thevictorlopez

A .help-block element would normally add a margin-top of 10px to distance itself from the preceding input (or textarea, select, etc). However if you add it before a .input-prepend type of control, the margin is gone.

The problem can be seen on this fiddle.

Edit: Forgot to mention, this is on v2.2.1