From d5dee6c367ab22c9394a425ee84de98d71a66927 Mon Sep 17 00:00:00 2001
From: Richard Gibson <richard.gibson@gmail.com>
Date: Tue, 29 Oct 2024 11:45:17 -0400
Subject: [PATCH] fix(x/swingset): Let migration see the missing param pairs

---
 golang/cosmos/x/swingset/keeper/keeper.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/golang/cosmos/x/swingset/keeper/keeper.go b/golang/cosmos/x/swingset/keeper/keeper.go
index dcd4790c4450..385cc482d038 100644
--- a/golang/cosmos/x/swingset/keeper/keeper.go
+++ b/golang/cosmos/x/swingset/keeper/keeper.go
@@ -246,7 +246,10 @@ func (k Keeper) BlockingSend(ctx sdk.Context, action vm.Action) (string, error)
 }
 
 func (k Keeper) GetParams(ctx sdk.Context) (params types.Params) {
-	k.paramSpace.GetParamSet(ctx, &params)
+	// Note the use of "IfExists"...
+	// migration fills in missing data with defaults,
+	// so it is the only consumer that should ever see a nil pair.
+	k.paramSpace.GetParamSetIfExists(ctx, &params)
 	return params
 }