only in patch2:
unchanged:
--- /dev/null
+++ b/autosave.api.php
@@ -0,0 +1,35 @@
+<?php
+/**
+ * @file
+ * API documentation for Autosave module.
+ */
+
+/**
+ * Implements hook_autosave_prevent().
+ *
+ * @param $prevent_autosave
+ *   Set this to TRUE to prevent autosaving.
+ *
+ *   More useful parameters are in $_POST.
+ */
+function hook_autosave_prevent(&$prevent_autosave) {
+   $path = $_POST['autosave_form_path'];
+   $path_args = explode("/", $path);
+  // check if node has just been saved - if it has then it's because AS ajax fired off as user was submitting
+  // if it had just been submitted - no need to AS now
+  //    - easy to figure out if we are submitting an edit to existing node
+  //    - little harder if we have just added a node
+  if ($path_args[0] == 'node') {
+    // update case
+    if (is_numeric($path_args[1])) {
+      $submitted = node_load($path_args[1]);
+    }
+    else {
+      // add case
+      $submitted = db_query_range("SELECT created AS changed FROM {node} WHERE uid = :uid and type = :type ORDER BY created DESC", 0, 1, array(
+        ':uid' => $user->uid,
+        ':type' => str_replace("-", "_", $path_args[2])))->fetchObject();
+    }
+    $prevent_autosave = $submitted ? TRUE : $prevent_autosave;
+  }
+}