(if (equal (car (process-lines notmuch-command "count" search-args)) "0")
(setq search-args basic-query))
(notmuch-tag-clear-cache)
(let ((proc (notmuch-start-notmuch
"notmuch-tree" (current-buffer) #'notmuch-tree-process-sentinel
(if (equal (car (process-lines notmuch-command "count" search-args)) "0")
(setq search-args basic-query))
(notmuch-tag-clear-cache)
(let ((proc (notmuch-start-notmuch
"notmuch-tree" (current-buffer) #'notmuch-tree-process-sentinel