autofree - variable undeclared - C builder error

[mamoss-oss]

Describe the bug

Compiling the example code with autofree option results in a compiler error

Reproduction Steps

module main

fn f(s string) ?[]u8 {
    if s == '' {
        return none
    }
    return [u8(104), 105]
}

fn main() {
    text := if temp := f('') {
        temp.str()
    } else if temp := f('something') {
        temp.str()
    } else {
        return
    }
    println(text)
}

v -autofree .

Expected Behavior

No error

Current Behavior

❯ v -cg -autofree .
/tmp/v_1000/autofree_error.01HNBMATFZWHF0JMW8F2KNQ4SC.tmp.c:12816: error: 'text' undeclared
builder error:
==================
C error. This should never happen.

This is a compiler bug, please report it using `v bug file.v`.

https://github.com/vlang/v/issues/new/choose

You can also use #help on Discord: https://discord.gg/vlang

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.4 804a7bd

Environment details (OS name and version, etc.)

Arch Linux x86

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