Index: taxonomy_hide.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/taxonomy_hide/taxonomy_hide.module,v
retrieving revision 1.6
diff -u -F^function -r1.6 taxonomy_hide.module
--- taxonomy_hide.module	27 Dec 2006 14:10:01 -0000	1.6
+++ taxonomy_hide.module	30 Jan 2007 23:41:08 -0000
@@ -76,19 +76,21 @@ function taxonomy_hide_nodeapi(&$node, $
   
   switch ($op) { 
     case 'view':
-      # Get all hidden vocabularies; keys of $hidden are the vocabulary ids.
-      $hidden = array_filter(variable_get('taxonomy_hide_vocabularies', array()));
-      if (count($hidden)) {
-	# Hide terms by removing them from the taxonomy field
-	foreach ($node->taxonomy as $key => $value) {
-	  if (array_key_exists($value->vid, $hidden)) {
-	    unset($node->taxonomy[$key]);
-	  }
-	}
-      }
-      if (variable_get('taxonomy_hide_group_by_vocabulary', 0)) {
-	# Sort terms by sorting the taxonomy field
-	usort($node->taxonomy, "_taxonomy_hide_sort");
+      if (count($node->taxonomy)) {
+        // Get all hidden vocabularies; keys of $hidden are the vocabulary ids.
+        $hidden = array_filter(variable_get('taxonomy_hide_vocabularies', array()));
+        if (count($hidden)) {
+          // Hide terms by removing them from the taxonomy field
+          foreach ($node->taxonomy as $key => $value) {
+            if (array_key_exists($value->vid, $hidden)) {
+              unset($node->taxonomy[$key]);
+            }
+          }
+        }
+        if (variable_get('taxonomy_hide_group_by_vocabulary', 0)) {
+          // Sort terms by sorting the taxonomy field
+          usort($node->taxonomy, "_taxonomy_hide_sort");
+        }
       }
       break;
   }