YAML 1.1 multi-document directives are not processed correctly

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
48/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
c
Domain
tooling

Research direction

No source file or test is named. Start by locating the multi-document directive parsing entry point and compare its behavior with the YAML 1.1 specification and the linked implementations; done means directives are inherited only by documents that declare none, with regression coverage for both cases.

Written by the indexing model from the issue text.

Description

The YAML 1.1 specification requires previously declared directives to be used for documents with no declared directives:

If the document specifies no directives, it is parsed using the same settings as the previous document. If the document does specify any directives, all directives of previous documents, if any, are ignored.

Please see Issue #299 of PyYAML.
YamlDotNet had the same issue and fixed it in PR #142.

Dominant language
C
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  4. Open a pull request that references the issue number.

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