I am on Drupal 7 and I am using the Rules module to do some stuff.
I must say that I am not very used to using this module; there are few questions that need answers, such as the use of the node:unchanged token.
For example, when I set a rule with a data comparison as a condition, I have to give the name of the referred field; then, there is either node:changed or node:unchanged.
I am quite accustomed to using node:changed. What does node:unchanged mean?