run queries against cachewrapped commit state, not checkstate

baseapp/baseapp.go

@@ -374,7 +374,11 @@ func handleQueryCustom(app *BaseApp, path []string, req abci.RequestQuery) (res
 		sdk.ErrUnknownRequest("No route for custom query specified").QueryResult()
 	}
 	querier := app.queryRouter.Route(path[1])
-	ctx := app.checkState.ctx
+	if querier == nil {
+		sdk.ErrUnknownRequest(fmt.Sprintf("no custom querier found for route %s", path[1])).QueryResult()
+	}
+
+	ctx := sdk.NewContext(app.cms.CacheMultiStore(), app.checkState.ctx.BlockHeader(), true, app.Logger)
 	// Passes the rest of the path as an argument to the querier.
 	// For example, in the path "custom/gov/proposal/test", the gov querier gets []string{"proposal", "test"} as the path
 	resBytes, err := querier(ctx, path[2:], req)