Description of problem:
When the same netgroup is requested twice, the getent request seemingly pauses
and then only returns the data from cache.

This is caused by an iterator variable reused in inner loop in the code.

Version-Release number of selected component (if applicable):
-66

How reproducible:
always

Steps to Reproduce:
1. on an IPA server, add a netgroup. Mine looks like this:
$ ipa netgroup-show testngr
  Netgroup name: testngr
  Description: a test netgroup
  NIS domain name: idm.lab.bos.redhat.com
  Member User: foobar

2. on the client, set a low entry_cache_timeout to force requests to go to the
server.
3. run getent netgr testngr. Results show up.
4. run it again,

Actual results:
The second invocation will pause for a moment and then fall back to cached data
(which can be verified by adding another member user on the server)

Expected results:
No pause and up to date data is returned

Additional info: