Forum topics being displayed multiple times

I'm not sure if this is the appropriate place to post this bug, so appologies in advance if this is the wrong place.

It only seems to be apparent when using the node_privacy_byrole.module, which I realize is not core. However, I'm not sure the problem is really due to the contributed module, rather than the unexpected way it interacts with 4.5.0

Here's what's going on: When using the node_privacy_byrole.module, it appears that for each gid (either a user id or a role id, depending on whether its node_privacy_byrole_user or node_privacy_byrole_role) with grant_view = 1 in the node_access table for a particular nid, that node will be displayed multiple times for each gid applicable to a given user.

For example, if a user is assigned 'role1' and 'role2', and both of those roles are given view access to a node, that node will be displayed twice for that user (at least if the content type is a forum topic, or an event in the event.module. Not sure this occurs for pages.)

Also, if a user is assigned 'role1' and both node_privacy_byrole_role for that role id is granted view access, and node_privacy_byrole_user for that user id is granted view access, once again, the node will be displayed twice.

Again, if a user has more than one access granted to a node, either through user and role access, or multiple role access, the node will be displayed for that user 1 time per access grant.

Here's an example of what's in the node_access table:

nid   gid   realm                        grant_view  grant_update  grant_delete
25    3     node_privacy_byrole_role     1           0             0
25    4     node_privacy_byrole_role     1           0             0
25    5     node_privacy_byrole_role     1           0             0
25    2     node_privacy_byrole_user     1           0             0
26    1     node_privacy_byrole_role     1           0             0
26    1     node_privacy_byrole_user     1           0             0

For node 25, user_id 2, as well as role_id's 3, 4, and 5, all have grant_view = 1. When user_id 2 is logged in, and assuming user_id 2 has roles 3, 4, and 5 assigned, that forum topic will show up 4 times, and the number indicating the number of posts to that forum, and the number of new posts, will be incremented by 4 rather than 1.

Similarly for node 26, user_id 1 as well as role_id 1 have grant_view = 1. When user_id 1 is logged in, and assuming user_id 1 has roles 1 assigned, that forum topic will show up 2 times, and the number indicating the number of posts to that forum, and the number of new posts, will be incremented by 2 rather than 1.

I'm not sure where the correct place to post this bug would be. It's not really a forum.module bug, as it only relates to the usage of a contributed module, but it seems to be a problem with what is being queried from the database.

This doesn't only show up for forum topic content, but I'm not sure what it is limited to. It doesn't seem to be a problem for pages, but it is if using the event.module for events.

Any help in trying to track down what's going on would be appreciated.

See also:

http://drupal.org/node/11719
http://drupal.org/node/11749