Triggers Node Access Rebuild even if no module implements node_grants

Hello,

My Environment
Pressflow Drupal : 6.19
Apache Solr : 6.x1.2 (From the Acquia Drupal Distribution)

I am getting repeated warnings like this " The content access permissions need to be rebuilt. Please visit this page. " . I did a little bit of probing and found that the apachesolr_nodeaccess module was setting node_access_needs_rebuild(TRUE) on line 127 and causing this issue. There are two observations

1. i don't have any node_access module enabled, i checked the node.module implementation of node_access_rebuild() (around line no 2315) and found that it was skipping rebuild if no module implemented node_grants, It instead set node_access_needs_rebuild to FALSE and cleared all the cache.

2. The apache solr node access module implements a form_alter hook like this [line 110]
/**
* Implementation of hook_form_alter().
*/
function apachesolr_nodeaccess_form_alter(&$form, $form_state, $form_id) {
if ($form_id == 'node_configure_rebuild_confirm') {
$form['#submit'][] = 'apachesolr_nodeaccess_rebuild_nodeaccess';
}
}

which adds a submit handler to the confirmation form for access rebuild. At this point when the user confirms the rebuild the logic as mentioned in 1 is triggered and then the function apachesolr_nodeaccess_rebuild_nodeaccess is called . In this function there is no check to see if the a rebuild of the index is really required and it again sets the node_access_needs_rebuild to TRUE and hence causing a repeated warning.

I don't know if this is specific to my installation and these are my observations. Kindly correct me if i am wrong and also help in solving this issue

Thanks