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Ignore empty authority changes (#13010)

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When something tries to enact an authority change with an empty authority set, we will ignore this now.
This commit is contained in:
Bastian Köcher
2022-12-23 23:28:11 +01:00
committed by GitHub
parent 0edab31776
commit e053d34cc5
2 changed files with 16 additions and 0 deletions
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substrate/frame/babe/src/lib.rs
+8
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@@ -572,6 +572,8 @@ impl<T: Config> Pallet<T> {
///
/// Typically, this is not handled directly by the user, but by higher-level validator-set
/// manager logic like `pallet-session`.
///
/// This doesn't do anything if `authorities` is empty.
pub fn enact_epoch_change(
authorities: WeakBoundedVec<(AuthorityId, BabeAuthorityWeight), T::MaxAuthorities>,
next_authorities: WeakBoundedVec<(AuthorityId, BabeAuthorityWeight), T::MaxAuthorities>,
@@ -580,6 +582,12 @@ impl<T: Config> Pallet<T> {
// by the session module to be called before this.
debug_assert!(Self::initialized().is_some());
if authorities.is_empty() {
log::warn!(target: LOG_TARGET, "Ignoring empty epoch change.");
return
}
// Update epoch index
let epoch_index = EpochIndex::<T>::get()
.checked_add(1)