Comment 0 for bug 1981965

Considering this minimal example:

```
#!/usr/sbin/nft -f

define l = {
    192.168.22.24,
    192.168.22.25
}

table t1 {

    # the definition of this map causes a segementation fault
    map snat_table {
        type ipv4_addr : ipv4_addr
        flags interval
        counter
        elements = {
                192.168.22.23 : 86.12.22.23,
                $l : 86.12.22.24
        }
    }

    chain c2 {
            type nat hook postrouting priority srcnat;

            oif wan1 snat to ip saddr map @snat_table

            # while using an anonymous map seems to work fine
            oif wan1 snat to ip saddr map {
                192.168.22.23 : 86.12.22.22,
                $l : 89.6.23.1
            }
    }

}

```

Expected outcome: Either an error that this is syntactically incorrect or that it works in named and anonymous maps

Actual outcome: Segmentation fault

Package name version: 1.0.2-1ubuntu2
OS release: Ubuntu 22.04 LTS