Generics and interfaces getting some "could not infer type" error

[Dracks]

Describe the bug

Code: https://vosca.dev/p/b76f7e2a1f

struct Metadata{}

struct TagOrText {}

pub interface Layout[R] {
	render(content []R) string
}


struct DefaultLayout {
}

pub fn (self DefaultLayout) to_layout() Layout[TagOrText] {
	return self
}

pub fn (self DefaultLayout) render(content []TagOrText) string {
	return "Hello world"
}


DefaultLayout{}.to_layout().render([])

Reproduction Steps

Run the code, not sure if It can be smaller, I had some other interfaces doing similar stuff and works.

Expected Behavior

The code runs correctly

Current Behavior

Output:

code.v:14:2: error: could not infer generic type `R` in interface `Layout`
   12 | 
   13 | pub fn (self DefaultLayout) to_layout() Layout[TagOrText] {
   14 |     return self
      |     ~~~~~~~~~~~
   15 | }
   16 |
Exited with error status 1

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.3 c3cf9ee.cc220e6

Environment details (OS name and version, etc.)

V full version: V 0.4.3 c3cf9ee.0966fd3
OS: linux, Ubuntu 22.04.2 LTS
Processor: 2 cpus, 64bit, little endian, Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz

getwd: /home/pmakhnev/playground
vexe: /home/pmakhnev/v/v
vexe mtime: 2023-11-20 18:00:09

vroot: OK, value: /home/pmakhnev/v
VMODULES: OK, value: /root/.vmodules
VTMP: OK, value: /tmp/v_0

Git version: git version 2.34.1
Git vroot status: weekly.2023.45.1-90-g0966fd3b
.git/config present: true

CC version: cc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
thirdparty/tcc status: thirdparty-linux-amd64 12f392c3

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