Consider deferred element properties in Org >= 9.7

closes #565

* jupyter-org-client.el (jupyter-org--prepare-context): Force
computation of values.
(jupyter-org--insert-nonstream): Remove spurious condition on when to
add a newline after inserting a result.

* test/jupyter-test.el (org-babel-jupyter-issue-565): New test.

Author: nnicandro

jupyter-org-client.el

@@ -1425,6 +1425,11 @@ new \"scalar\" result with the result of calling
   "Delete an `org' ELEMENT from the buffer.
 Leave its affiliated keywords and preserve any blank lines that
 appear after the element."
+  ;; Force deferred property to compute the properties before deleting
+  ;; the element from the buffer, the ELEMENT is used elsewhere even
+  ;; after it has been removed from the buffer.  For Org >= 9.7.
+  (when (functionp 'org-element-properties-resolve)
+    (org-element-properties-resolve element t))
   (delete-region (jupyter-org-element-begin-after-affiliated element)
                  (jupyter-org-element-end-before-blanks element)))
 
@@ -1747,8 +1752,7 @@ If INDENTATION is nil, it defaults to `current-indentation'."
                          (eq (org-element-type context) 'drawer))
                      result
                    (jupyter-org-results-drawer result))))))))
-  (when (or (/= (point) (line-beginning-position))
-            (eq (org-element-type context) 'example-block))
+  (when (/= (point) (line-beginning-position))
     ;; Org objects such as file links do not have a newline added when
     ;; converting to their string representation by
     ;; `org-element-interpret-data' so insert one in these cases.

test/jupyter-test.el

@@ -3010,6 +3010,38 @@ print(2)"
            (kill-buffer (org-babel-jupyter-initiate-session
                          (alist-get :session params) params))))))))
 
+(ert-deftest org-babel-jupyer-issue-565 ()
+  :tags '(org)
+  (jupyter-org-test-src-block
+   "\
+import logging
+import time
+logging.basicConfig(level=logging.INFO)
+log = logging.getLogger(__name__)
+for i in range(10):
+    log.info(\"here\")
+    time.sleep(0.1)
+
+{1: 2}"
+   "\
+:RESULTS:
+#+begin_example
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+  INFO:__main__:here
+#+end_example
+| 1: | 2 |
+:END:
+"
+   :async "yes"))
+
 (ert-deftest org-babel-src-block-name-resolution ()
   :tags '(org)
   (let ((src (format "\