René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"allOf fails if it references a type that also uses allOf with just single item","articleBody":"**Describe the bug**\r\n\r\nConditions:\r\n- Schema A is a type with any definition.\r\n- Schema B contains only an `allOf` with a single element referencing Schema A.\r\n- Schema C contains an `allOf` that 1. references Schema B and 2. adds a property.\r\n\r\nExpected behavior:\r\n- Spec is valid. Schema B should be treated as exactly equivalent to Schema A (in other words, C becomes an extension of A with an extra property).\r\n\r\nObserved behavior:\r\n- Parsing fails. Error message is \"Unable to process schema \u003cpath to schema C\u003e\".\r\n\r\n**OpenAPI Spec File**\r\nhttps://gist.github.com/eli-bl/8f5c7d1d872d9fda5379fa6370dab6a8\r\n\r\n**Desktop (please complete the following information):**\r\n- OS: macOS 14.5\r\n- Python Version: 3.8.15\r\n- openapi-python-client version 0.21.2\r\n","author":{"url":"https://github.com/eli-bl","@type":"Person","name":"eli-bl"},"datePublished":"2024-08-06T18:57:33.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1091/openapi-python-client/issues/1091"}