+(deffoo nnimap-request-thread (id)
+ (let* ((refs (split-string
+ (or (mail-header-references (gnus-summary-article-header))
+ "")))
+ (cmd (let ((value
+ (format
+ "(OR HEADER REFERENCES %s HEADER Message-Id %s)"
+ id id)))
+ (dolist (refid refs value)
+ (setq value (format
+ "(OR (OR HEADER Message-Id %s HEADER REFERENCES %s) %s)"
+ refid refid value)))))
+ (result
+ (with-current-buffer (nnimap-buffer)
+ (nnimap-command "UID SEARCH %s" cmd))))
+ (gnus-fetch-headers (and (car result)
+ (delete 0 (mapcar #'string-to-number
+ (cdr (assoc "SEARCH" (cdr result)))))))))
+