WARNING: Editing Webform form settings can cause custom alias to revert to pattern

THere is a bug in pathauto right now that causes nodes to lose track of whether they should use the pathauto alias pattern or an overridden value.

It is being worked on... but not very rapidly http://drupal.org/node/936222

In the mean time, beware, that if you edit a form setting, you quite likely lost your original alias. Changing it back to the original alias will result in a loop of url redirects because one was already created for the url you just changed back to. So immediately after changing it back to the alias you had, then go delete the url redirect for that alias.