Calculated default polymorphic const of a struct is incorrect

[zen3ger]

Context

Useful information to add to a bug report:

	Odin:    dev-2024-09:a16d3b6c9
	OS:      openSUSE Tumbleweed, Linux 6.10.7-1-default
	CPU:     AMD Ryzen 9 5900X 12-Core Processor            
	RAM:     31999 MiB
	Backend: LLVM 18.1.8

Expected Behavior

The default value calculated for a polymorphic constant will match what's calculated in a polymorphic procedure.

Current Behavior

The const values differ.

Failure Information (for bugs)

Reproduction:

package test

import "core:fmt"

LEN :: 64

S :: struct ($T, $U: typeid, $Count := LEN / max(size_of(T), size_of(U))) {}

make_s :: proc($T, $U: typeid) -> S(T, U, LEN / max(size_of(T), size_of(U))) {
	return {}
}

main :: proc() {
	wrong_count: S(f64, [2]int)
	correct_count := make_s(f64, [2]int)
	fmt.println("expected:", LEN / max(size_of(f64), size_of([2]int)))
	fmt.println("wrong:", wrong_count)
	fmt.println("correct:", correct_count)
}

Steps to Reproduce

1. compile and run the reproduction
2. See $Count differ in the print of wrong_count to the expected one.

Failure Logs

Output of the reproduction:

$ odin run .
expected: 4
wrong: S($T=f64, $U=[2]int, $Count=8){}
correct: S($T=f64, $U=[2]int, $Count=4){}