Description of problem: Creation of an instance as a different group than the existing instance group, breaks the existing instances.


Version-Release number of selected component (if applicable): 389-ds-base

How to reproduce:

1. Install 389-ds-base/ds8.2.4 build.
2. Create a shared group and few users for the same group.
      groupadd group1
      useradd -g group1 user1             - inst1
      useradd -g group1 user2             - inst2
      useradd -g group1 user3             - inst3
3. Create three instances using these group/user names as inst1, inst2 and inst3.
4. Check the file permissions for /var/run/dirsrv - user1/group1
5. Create a group called - group2: groupadd group2
6. Create an user(user4) and add it to group2: useradd -g group2 user4
7. Create an instance(inst4) using user as user4 and group as group2.
8. Instance creation succeeds for inst4
9. Check the file permissions for /var/run/dirsrv - user1/group2

10. The group permission keeps changing based on the new instance created.

Actual results:
Due to the change in the file(group) permissions, instances inst2 and inst3 fails to start.

Expected results:

DS should not allow the user to create an instance as an unprivileged DS group.
Group permission for this directory should not be altered.