Description of problem:

When one presses "Update Configuration File", on page

  /rhn/configuration/file/FileDetails.do?cfid=1

(Configuration -> Configuration files -> some directory)
while looking at directory (not file) and have not changed anything,
he/she gets Null pointer exception.

Version-Release number of selected component (if applicable):


How reproducible: always/deterministic

Steps to Reproduce:
1. create new config channel, in channel create $DIRECTORY
2. navigate to Configuration -> Configuration files -> $DIRECTORY
3. press "Update Configuration File"

Actual results:
Null pointer exception

Expected results:
Not much (well, nothing has changed...)

Additional info:
It works when for example permissions are changed.