fix(inflation): re-add missing key to avoid keys shift (#1259)

* fix: added correct int type for periods in store migration

* fix: added error checking

* fix: removed old param getting

* Update x/inflation/migrations/v3/migrate.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* fix: revert removal of missing key

* Changelog entry

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

CHANGELOG.md

@@ -67,6 +67,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 
+- (inflation) [#1259](https://github.com/evmos/evmos/pull/1259) Re-add missing key to not disrupt order in store
 - (ibc) [#1156](https://github.com/evmos/evmos/pull/1156) Migrate IBC transfer escrow accounts to `ModuleAccount` type.
 - (upgrade) [#1252](https://github.com/evmos/evmos/pull/1252) Add account number and sequence to migrated IBC transfer escrow accounts.
 - (upgrade) [#1257](https://github.com/evmos/evmos/pull/1257) Add `recovery` module store to `StoreUpgrades`

x/inflation/types/keys.go

@@ -31,6 +31,7 @@ const (
 // prefix bytes for the inflation persistent store
 const (
 	prefixPeriod = iota + 1
+	prefixEpochMintProvision
 	prefixEpochIdentifier
 	prefixEpochsPerPeriod
 	prefixSkippedEpochs