PipelineOptions can pick up definitions from unrelated tests
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bug
core
P3
python
- Dominant language
- Java
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Description
Since PipelineOptions uses `\_\_subclasses\_\_` to look for all definitions, when used in tests it can sometimes pick up sub-classes that were created in previously executed tests.
See BEAM-9975 for more details.
Imported from Jira [BEAM-10006](https://issues.apache.org/jira/browse/BEAM-10006). Original Jira may contain additional context.
Reported by: bhulette.
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