diff --git a/src/process.rs b/src/process.rs
index 6362712..3abe6e6 100644
--- a/src/process.rs
+++ b/src/process.rs
@@ -118,7 +118,10 @@ impl ProcessState {
             // Collect applicable rules from all roles for the current field
             let applicable_roles: Vec<RoleDefinition> = self.roles
                 .iter()
-                .filter_map(|(_, role_def)| {
+                .filter_map(|(role_name, role_def)| {
+                    // We allow for a special case with a role that works only for initial state
+                    // That's optional though
+                    if previous_state.is_some() && *role_name == crate::SpecialRoles::DEMIURGE.to_string() { return None; }
                     let mut filtered_role_def = role_def.clone();
                     let rules = filtered_role_def.get_applicable_rules(field);
                     filtered_role_def.validation_rules =