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https://issues.apache.org/jira/browse/ARIA-231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16002251#comment-16002251
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Ran Ziv commented on ARIA-231:
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I'm familiar with this from PyYAML; Apparently it's technically a valid YAML,
where the last instance of the section becomes the only relevant one which gets
loaded when parsing the YAML.
We could add a validation for this, but I think as it's technically a valid
YAML it might actually be better to allow it in order to be consistent with the
standard :|
> Parser does not show validation error if the same section appears twice
> -----------------------------------------------------------------------
>
> Key: ARIA-231
> URL: https://issues.apache.org/jira/browse/ARIA-231
> Project: AriaTosca
> Issue Type: Bug
> Reporter: Tal Liron
> Priority: Minor
>
> Investigate what happens when a YAML section appears twice, e.g.:
> {code}
> node_templates:
> my_template:
> requirements:
> ...
> requirements:
> ...
> {code}
> There are currently no errors for this. :/
> One would imagine that it's illegal YAML for a dict key to appear twice, and
> that the YAML parser should fail. If it's indeed a YAML parser bug, it might
> difficult to detect...
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