fix: update pending undelegations when nil after unmarshaling

x/application/keeper/application.go

@@ -60,6 +60,13 @@ func (k Keeper) GetAllApplications(ctx context.Context) (apps []types.Applicatio
  for ; iterator.Valid(); iterator.Next() {
  var app types.Application
  k.cdc.MustUnmarshal(iterator.Value(), &app)
+
+ // Ensure that the PendingUndelegations is an empty map and not nil when
+ // unmarshalling an app that has no pending undelegations.
+ if app.PendingUndelegations == nil {
+ app.PendingUndelegations = make(map[uint64]types.UndelegatingGatewayList)
+ }
+
  apps = append(apps, app)
  }
 

x/application/keeper/application_test.go

@@ -22,6 +22,8 @@ func createNApplications(keeper keeper.Keeper, ctx context.Context, n int) []typ
  apps := make([]types.Application, n)
  for i := range apps {
  apps[i].Address = strconv.Itoa(i)
+ // Setting pending undelegations since nullify.Fill does not seem to do it.
+ apps[i].PendingUndelegations = make(map[uint64]types.UndelegatingGatewayList)
 
  keeper.SetApplication(ctx, apps[i])
  }

x/application/keeper/query_application.go

@@ -27,6 +27,12 @@ func (k Keeper) AllApplications(ctx context.Context, req *types.QueryAllApplicat
  return err
  }
 
+ // Ensure that the PendingUndelegations is an empty map and not nil when
+ // unmarshalling an app that has no pending undelegations.
+ if application.PendingUndelegations == nil {
+ application.PendingUndelegations = make(map[uint64]types.UndelegatingGatewayList)
+ }
+
  apps = append(apps, application)
  return nil
  })