fix 3553, it's not possible to create multiple workflows with the same base DN

jdemendi

03.54.2008 3acbfb5128169afe91cd3b0b3d6b98dd433d6e12

 opends/src/server/org/opends/server/core/networkgroups/NetworkGroupConfigManager.java

@@ -238,7 +238,6 @@
    ConfigChangeResult configChangeResult =
      new ConfigChangeResult(resultCode, adminActionRequired, messages);


    // Get the existing network group if it's already enabled.
    NetworkGroup existingNetworkGroup = networkGroups.get(configuration.dn());

@@ -297,7 +296,7 @@
          } catch (DirectoryException de) {
            if (resultCode == ResultCode.SUCCESS)
            {
              resultCode = DirectoryServer.getServerErrorResultCode();
              resultCode = de.getResultCode();
            }
            messages.add(de.getMessageObject());
          }
@@ -305,6 +304,9 @@
      }
    }

    configChangeResult =
      new ConfigChangeResult(resultCode, adminActionRequired, messages);

    return configChangeResult;
  }