Timeout only if the referendum is not queued

frame/referenda/src/lib.rs

@@ -79,7 +79,7 @@ use frame_support::{
 };
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{AtLeast32BitUnsigned, Dispatchable, One, Saturating, Zero},
+	traits::{AtLeast32BitUnsigned, Dispatchable, One, Saturating, Zero, Bounded},
 	DispatchError, Perbill,
 };
 use sp_std::{fmt::Debug, prelude::*};
@@ -1054,9 +1054,9 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
 			Some(x) => x,
 			None => return (ReferendumInfo::Ongoing(status), false, ServiceBranch::Fail),
 		};
+		// Default the alarm to the end of the world.
 		let timeout = status.submitted + T::UndecidingTimeout::get();
-		// Default the alarm to the submission timeout.
-		let mut alarm = timeout;
+		let mut alarm = T::BlockNumber::max_value();
 		let branch;
 		match &mut status.deciding {
 			None => {
@@ -1097,11 +1097,12 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
 							ServiceBranch::Preparing
 						}
 					} else {
+						alarm = timeout;
 						ServiceBranch::NoDeposit
 					}
 				}
 				// If we didn't move into being decided, then check the timeout.
-				if status.deciding.is_none() && now >= timeout {
+				if status.deciding.is_none() && now >= timeout && !status.in_queue {
 					// Too long without being decided - end it.
 					Self::ensure_no_alarm(&mut status);
 					Self::deposit_event(Event::<T, I>::TimedOut { index, tally: status.tally });
@@ -1186,7 +1187,11 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
 			},
 		}
 
-		let dirty_alarm = Self::ensure_alarm_at(&mut status, index, alarm);
+		let dirty_alarm = if alarm < T::BlockNumber::max_value() {
+			Self::ensure_alarm_at(&mut status, index, alarm)
+		} else {
+			Self::ensure_no_alarm(&mut status)
+		};
 		(ReferendumInfo::Ongoing(status), dirty_alarm || dirty, branch)
 	}
 
@@ -1210,10 +1215,13 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
 	}
 
 	/// Cancel the alarm in `status`, if one exists.
-	fn ensure_no_alarm(status: &mut ReferendumStatusOf<T, I>) {
+	fn ensure_no_alarm(status: &mut ReferendumStatusOf<T, I>) -> bool {
 		if let Some((_, last_alarm)) = status.alarm.take() {
 			// Incorrect alarm - cancel it.
 			let _ = T::Scheduler::cancel(last_alarm);
+			true
+		} else {
+			false
 		}
 	}
 

frame/referenda/src/tests.rs

@@ -190,6 +190,8 @@ fn queueing_works() {
 				set_balance_proposal_bounded(i),
 				DispatchTime::After(0),
 			));
+		}
+		for i in [1, 2, 4] {
 			assert_ok!(Referenda::place_decision_deposit(RuntimeOrigin::signed(i), i as u32));
 			// TODO: decision deposit after some initial votes with a non-highest voted coming
 			// first.