cvat: [GSoC2024] Filenames with same name but different extensions cause error

Actions before raising this issue

• I searched the existing issues and did not find anything similar.
• I read/searched the docs

Steps to Reproduce

1. Create a new task on CVAT.
2. upload images named image1.png and image1.jpg
3. upload COCO annotations
4. Will throw error if you have an image named image1.jpg and another image named image1.png even if both the images are very different:

Could not upload annotation for the [task 4](http://localhost:8080/tasks/4)

Item ('image1', 'default') is repeated in the source sequence..

COCO annotation json:

{
    "info": {
        "description": "my-project-name"
    },
    "images": [
        {
            "id": 1,
            "width": 1200,
            "height": 1600,
            "file_name": "image1.jpg"
        },
        {
            "id": 2,
            "width": 2592,
            "height": 1944,
            "file_name": "image1.png"
        }
    ],
    "annotations": [
        {
            "id": 0,
            "iscrowd": 0,
            "image_id": 1,
            "category_id": 1,
            "segmentation": [
                [
                    787.1904355251921,
                    419.47053800170795,
                    850.0426985482494,
                    710.5038428693424,
                    500.25619128949614,
                    639.4534585824082,
                    778.9923142613151,
                    420.8368915456874
                ]
            ],
            "bbox": [
                500.25619128949614,
                419.47053800170795,
                349.78650725875326,
                291.03330486763446
            ],
            "area": 49372.61940096601
        },
        {
            "id": 1,
            "iscrowd": 0,
            "image_id": 2,
            "category_id": 1,
            "segmentation": [
                [
                    1086.8249359521776,
                    424.99060631938517,
                    1204.6934244235697,
                    848.3210930828352,
                    885.9504696840307,
                    800.1776259607174
                ]
            ],
            "bbox": [
                885.9504696840307,
                424.99060631938517,
                318.74295473953896,
                423.33048676345004
            ],
            "area": 64629.50624142664
        }
    ],
    "categories": [
        {
            "id": 1,
            "name": "object"
        }
    ]
}

Removing entry or doing other things throws other errors. This really should not happen because COCO supports adding extensions to the file name

Expected Behavior

It should allow a person to upload files and COCO annotations even if file name is same, as long as the file extension is different

Possible Solution

It should allow a person to upload files and COCO annotations even if file name is same, as long as the file extension is different

Context

I want to add that in general CVAT has the tendency to completely abort any upload operation the moment it finds a single error. this results in huge time loss just trying to debug CVAT errors (which technically shouldn’t even be errors since this is a perfect use of the COCO file format). If a few extra images are annotated in COCO, it will throw an error instead of just annotating the images present in the job and completely abort the operation. if a single annotation has an error, it will abort the operation again. Instead, it should just warn you and try and import as many annotations as possible, like roboflow does.

Environment

CVAT website, or even locally installed CVAT. all cause this issue.