Regression in oas3-examples-value-or-externalValue: examples in examples is asked to be OpenAPI compliant

[m-mohr]

Describe the bug

Examples properties in OpenAPI Examples are reported as invalid although they are the actual examples and contain no value or external value, of course. This seems to be a regression (or just something related) of my fix in #899.

To Reproduce

Validate https://raw.githubusercontent.com/Open-EO/openeo-api/draft/openapi.yaml

Response (reports for oas3-unused-components-schema may be valid, reports for oas3-examples-value-or-externalValue are likely invalid):

> spectral lint openapi.yaml

OpenAPI 3.x detected

c:/dev/openeo-api/openapi.yaml
 1592:25  warning  oas3-examples-value-or-externalValue  Examples should have either a `value` or `externalValue` field.
 1596:25  warning  oas3-examples-value-or-externalValue  Examples should have either a `value` or `externalValue` field.
 1600:25  warning  oas3-examples-value-or-externalValue  Examples should have either a `value` or `externalValue` field.
 3330:30  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 3398:16  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 4264:21  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 4281:21  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 4347:34  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 4353:32  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 4364:24  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 4680:17  warning  oas3-examples-value-or-externalValue  Examples should have either a `value` or `externalValue` field.
 4734:11  warning  oas3-examples-value-or-externalValue  Examples should have either a `value` or `externalValue` field.
 5414:18  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 5453:23  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 5465:20  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 5479:23  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 5491:28  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 5505:25  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.
 5521:31  warning  oas3-unused-components-schema         Potentially unused components schema has been detected.

✖ 19 problems (0 errors, 19 warnings, 0 infos, 0 hints)

Expected behavior

No warnings for rule oas3-examples-value-or-externalValue.

Screenshots
If applicable, add screenshots to help explain your problem.

Environment (remove any that are not applicable):

• Library version: 5.7.1
• OS: Win10

[P0lip]

Hey!
My sincere apologies for dropping a ball on this one.
It turned out the issue was caused by JSON path expression used by that rule.
The expression was tad too broad and matched too many spots in the document.
I tweaked it - the PR is over here #1428.
Feel free to take a look at it if you wish.

[m-mohr]

Works for me, thanks.