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What was wrong with range validation?
CVAT pull request #9285 addressed how detector results are converted and validated when Nuclio functions return numeric attributes. The pull request describes duplicated conversion logic between whole-task server-side annotation and per-frame annotation. Its change moved most of that conversion work to shared server-side handling for both request paths.
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During review, CVAT contributor bsekachev pointed out that the interactive request path had lost min, max, and step validation: the server was only checking whether a value was numeric. The pull-request author said range checking was added to server validation and corrected the step test.
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A configured step defines valid increments starting from the minimum. Therefore, a value is on the permitted step grid when subtracting the minimum leaves a multiple of the step:
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(value - min) % step = 0
Checking only whether the value itself is divisible by the step can reject valid values when the minimum is not a multiple of the step. For example, with a minimum of 3 and a step of 2, the valid sequence is 3, 5, 7, and so on. The value 5 is valid even though 5 is not divisible by 2; its offset from the minimum is.
This explains the specific step-checking correction described by the pull-request author. It should not be read as a broader statement about decimal precision or validation behavior for every CVAT attribute type.
Which auto-annotation flows does the correction cover?
| Flow | What the release notes establish |
|---|---|
| Whole-task auto-annotation | Nuclio numeric outputs are checked against their acceptable range. |
| Per-frame interactive auto-annotation | Range validation works when the configured minimum is not a multiple of the step. |
These are two affected request paths, not alternative products. The shared server-side conversion described in pull request #9285 was intended to avoid maintaining separate detector-output conversion behavior for batch and interactive requests.
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Which CVAT version includes the documented fix?
The official CVAT changelog records the changes under version 2.35.0, dated April 29, 2025. That release entry is evidence for inclusion in 2.35.0; it does not establish behavior in every later release. The pull request was developed against the develop branch, so the release note is the clearer version reference for users.
What testing was reported?
The pull-request author reported manual testing with three Nuclio functions: openvino-omz-intel-face-detection-0205, openvino-omz-public-mask-rcnn-inception-resnet-v2-atrous-coco, and pth-mmpose-hrnet32. This is the author’s account of project testing, not an independent reproduction or a guarantee for every detector function or deployment.
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