`Compiler Bug` when `for` loop iterates over `tuple` type

[kfcripps]

extern void foo(in bit<8> arg);

control C() {
    action a() {
        for (bit<8> i in tuple<bit<8>> { 1 }) {
            foo(i);
        }
    }

    table t {
        actions = { a; }
        default_action = a;
    }

    apply {
        t.apply();
    }
}

control proto();
package top(proto p);

top(C()) main;

Results in:

$ p4test --dump tmp tmp.p4
terminate called after throwing an instance of 'P4::Util::CompilerBug'
  what():  In file: ir/ir-generated.cpp:4873
Compiler Bug: ir/ir-generated.cpp:4873: Null arguments

I encounter the same assertion when the forCollectionExpr is a typeRef, for example:

header h_t { bit<8> f; }
...
        for (bit<8> i in h_t) {
            foo(i);
        }