Cannot assign interface pointer to struct initialization: error: cannot assign a pointer to option struct field

[daansystems]

V version: V 0.4.9 e66e996, press to see full `v doctor` output

V full version	V 0.4.9 5c65e58.e66e996
OS	windows, Microsoft Windows 11 Pro 26100 64-bit
Processor	24 cpus, 64bit, little endian, AMD Ryzen 9 3900X 12-Core Processor
Memory	18.64GB/31.9GB
V executable	C:\v\v.exe
V last modified time	2025-03-08 10:49:50
V home dir	OK, value: C:\v
VMODULES	OK, value: C:\Users\info.vmodules
VTMP	OK, value: C:\Users\info\Documents\MobaXterm\slash\mx86_64b\var\log\xwin\v_0
Current working dir	OK, value: D:\vbug2
Git version	git version 2.42.0.windows.2
V git status	weekly.2025.08-112-ge66e9960-dirty
.git/config present	true
cc version	N/A
gcc version	N/A
clang version	clang version 17.0.1
msvc version	N/A
tcc version	tcc version 0.9.27 (x86_64 Windows)
tcc git status	thirdparty-windows-amd64 b425ac82
emcc version	N/A
glibc version	ldd (cygwin) 3.4.7

What did you do?
./v -g -o vdbg cmd/v && ./vdbg main.v && D:\vbug2\main.exe

module main

@[heap]
interface IGameObject {
mut:
	name     string
	parent   ?&IGameObject
}

@[heap]
struct GameObject implements IGameObject {
mut:
	name     string
	parent   ?&IGameObject
}

struct Ship implements IGameObject {
	GameObject
	speed f32
}

fn main() {
	mut world := &GameObject{
		name: 'world'
	}
	mut ship := &Ship{
		name: 'ship',
		parent: world
	}
	eprintln("ship: ${ship}")
}

What did you see?

main.v:28:3: error: cannot assign a pointer to option struct field
   26 |     mut ship := &Ship{
   27 |         name: 'ship',
   28 |         parent: world
      |         ~~~~~~~~~~~~~
   29 |     }
   30 |     eprintln("ship: ${ship}")

What did you expect to see?

no v error

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[huly-for-github]

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