inline if statement generates C error with struct option fields

[islonely]

Describe the bug

C error is produced when assigning string in if clause and none in else clause to option field of struct with inline if statements.

Reproduction Steps

struct Foo {
mut:
	option ?string
}

fn main() {
	mut foo := Foo{}
	some_val := 1
	foo.option = if some_val > 0 {
		'awesome'
	} else {
		none
	}
}

Expected Behavior

Expected code to compile. No output.

Current Behavior

Generates C error. Edit: forgot to add the C error 😅

C:/Users/imado/AppData/Local/Temp/v_0/test.5766870113736213155.tmp.c:499: warning: WINVER redefined
C:/Users/imado/AppData/Local/Temp/v_0/test.5766870113736213155.tmp.c:6796: warning: implicit declaration of function 'tcc_backtrace'
C:/Users/imado/AppData/Local/Temp/v_0/test.5766870113736213155.tmp.c:12566: error: declaration of an array of incomplete type elements
builder error: 
==================
C error. This should never happen.

Possible Solution

No response

Additional Information/Context

No response

V version

V full version: V 0.4.1 68cbf27.24278d8

Environment details (OS name and version, etc.)

V full version: V 0.4.1 68cbf27.24278d8
OS: windows, Microsoft Windows 11 Pro v22621 64-bit
Processor: 16 cpus, 64bit, little endian, 

getwd: C:\frostbyte
vexe: C:\Users\imado\v\v.exe
vexe mtime: 2023-09-29 19:06:29

vroot: OK, value: C:\Users\imado\v
VMODULES: OK, value: C:\Users\imado\.vmodules
VTMP: OK, value: C:\Users\imado\AppData\Local\Temp\v_0

Git version: git version 2.33.1.windows.1
Git vroot status: weekly.2023.39-20-g24278d82 (1 commit(s) behind V master)
.git/config present: true

CC version: Error: 'cc' is not recognized as an internal or external command,
operable program or batch file.

thirdparty/tcc status: thirdparty-windows-amd64 e90c2620

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[islonely]

This is the C it generates that causes the error.

_option_string _t2; /* if prepend */
if (some_val > 0) {
	_option_ok(&(void[]) { _SLIT("awesome") }, (_option*)(&_t2), sizeof(void));
} else {
	_t2.state = 2;
	_t2.err = _const_none__;
}
foo.option =  _t2;