Readonly_Readonly~effect/Optional Readonly~effect/Attach extra key/value metadata to this error.
Optional Readonly~effect/Suppress reports for this error.
Optional Readonly~effect/Override the severity level for this error.
Optional Readonly~effect/Optional Readonly~effect/OptionalcauseOptionalstack
The "New post" screen was asked to publish with no photo, or with a photo the process's pool no longer holds. Only a build defect reaches it (the picker hands the editor at least one photo by type), so it is a defect with a named class, the way the core's screen defects are raised with theirs.