Unexpected behavior when comparing slices of maps

version: `go-cmp@v0.7.0`, `go@v1.21.3`
When I was comparing slices of maps defined as:
```go
a := []any{map[string]any{"a": 1, "b": 2, "c": 3}}
b := []any{map[string]any{"a": 2, "b": 4, "c": 3}}
fmt.Println(cmp.Diff(a,b))
```
The result is:
```
[]any{
map[string]any{
- "a": int(1)
- "a": int(2)
- "b": int(2)
- "b": int(4)
"c": int(3)
},
}
```
Which means it traversed inside the map entries.

However, when I was doing this:
```go
a := []any{map[string]any{"a": 1, "b": 2, "c": 3}}
b := []any{map[string]any{"a": 2, "b": 4, "c": 6}}
fmt.Println(cmp.Diff(a,b))
```
The result become:
```
[]any{
- map[string]any{"a": int(1), "b": int(2), "c": int(3)},
+ map[string]any{"a": int(2), "b": int(4), "c": int(6)},
}
```

I've tested several tests, and it seems that it stops traversing only when the map have three or more differences. Is it a bug, or am I doing anything wrong? Since I'm using go-cmp to handle deserialized objects, this case will affect the path filter.