Assigning to unassigned structs leads to different results in Batch and Bash

Assigning to unassigned structs leads to different results in Batch and Bash. Even though this should not be the biggest issue because this scenario should be avoided by the programmer anyway.

```golang
type easyStruct struct {
	a string
}

sl := []easyStruct{}
sl[0].a = "updated"

print(sl[0].a)
```

**Batch**
```
```

**Bash**
```
updated
```