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A publish form with several asset fields fires the same assets-fieldtype request once per field. Markdown fields and Bard image nodes hit the same endpoint. When those requests are identical and concurrent, share one promise instead of sending duplicates.
dedupeInFlight(namespace, key, factory) collapses concurrent identical in-flight work onto a single shared promise. The entry is dropped as soon as the promise settles, so no settled response is ever reused — this is not a cache and has no staleness window. Every caller receives the same real response, and if the request fails they all reject together.
The assets fieldtype clones its copy of the response so edits to one field's asset rows can't bleed into another field sharing the same in-flight response.
Multiple asset fields, markdown fields, and Bard image nodes on the same
page each fire their own POST to assets-fieldtype on mount. When those
requests are identical and concurrent, share one promise instead.
The shared promise is dropped as soon as it settles, so this only ever
collapses in-flight duplicates - no settled response is ever reused.
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A publish form with several asset fields fires the same
assets-fieldtyperequest once per field. Markdown fields and Bard image nodes hit the same endpoint. When those requests are identical and concurrent, share one promise instead of sending duplicates.dedupeInFlight(namespace, key, factory)collapses concurrent identical in-flight work onto a single shared promise. The entry is dropped as soon as the promise settles, so no settled response is ever reused — this is not a cache and has no staleness window. Every caller receives the same real response, and if the request fails they all reject together.The assets fieldtype clones its copy of the response so edits to one field's asset rows can't bleed into another field sharing the same in-flight response.
Split out of #15158.