gen: s.h.NewError is not used when parameters fail to decode

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What version of ogen are you using?

$ go list -m github.com/ogen-go/ogen
github.com/ogen-go/ogen v1.14.0

Can this issue be reproduced with the latest version?

Yes

What did you do?

The following is needed

• NewErrors method in the handler from the convenient errors feature
• A parameter that is decoded

To reproduce the problem, decoding the parameter needs to fail. E.g. the format is a UUID, but the length is wrong.

What did you expect to see?

An ogenerrors.DecodeParamsError pointer value is passed to NewError to be handled like other errors.

			if encodeErr := encodeErrorResponse(s.h.NewError(ctx, err), w); encodeErr != nil {
				defer recordError("DecodeParams", err)
			}

What did you see instead?

An ogenerrors.DecodeParamsError pointer value is passed to the default error handler:

		s.cfg.ErrorHandler(ctx, w, r, err)

For constrast, the security section of the oas_handlers_gen for an operation does use NewError.

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If I'm understanding the code correctly, that particular error handling is generated by this part of the handlers template.

It also seems like decoding the request will have similar issues.