Actions do not run when saving multiple nodes at once.

I wrote an import script to pull data from a legacy system periodically. I have an action that is supposed to run on every presave op of nodeapi. Only the first node was having the action run on it.

After looking at the actions_nodeapi script I saw that a static variable was declared to ensure the function to get stuck in recursion. I've added the $node->nid as a key to the array to keep track of $op's on a specific $node->nid so my import script would work.