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Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>

Author: maniwani

crates/bevy_ecs/src/event.rs

@@ -766,6 +766,8 @@ pub fn event_update_system<T: Event>(
     mut events: ResMut<Events<T>>,
 ) {
     if let Some(mut s) = signal {
+        // If we haven't got a signal to update the events, but we *could* get such a signal
+        // return early and update the events later.
         if !std::mem::replace(&mut s.0, false) {
             return;
         }