i find the annotation's id is not unique

[shier1]

{
"id": 4040,
"image_id": 1281,
"category_id": 59,
"segmentation": [
[
156.0,
1460.0,
142.0,
1372.0,
170.0,
1362.0,
184.0,
1452.0,
172.0,
1462.0,
156.0,
1460.0
]
],
"area": 2710.0,
"bbox": [
142.0,
1362.0,
42.0,
100.0
],
"iscrowd": 0
},
{
"id": 4040,
"image_id": 1300,
"category_id": 58,
"segmentation": [
[
143,
1979,
187,
1980,
184,
2028,
158,
2028,
156,
2014,
145,
2009
]
],
"area": 1798.5,
"bbox": [
143.0,
1979.0,
44.0,
49.0
],
"iscrowd": 0
},

[ken011528]

Thank You, also the "id": 309 is duplicated.

[Erotemic]

I've found this is still the case. Using kwcoco if I run:

kwcoco validate annotations.json

I get:

Exception: {
    'annotations.json': ['Duplicate annotations id = 309', 'Duplicate annotations id = 4040'],
}