indent-new-comment-line misbehaviour?

[Uwe Brauer]

Hello

I used xemacs-21.4.19 mule -vanilla.

I added a comment via `lisp-indent-for-comment'
(defun textmarker-region (start end)  ;this is the comment
  (interactive "r")
  (xref-source-region start end)
  (xref-target-region start end))

however then indent-new-comment-line put the cursor

(defun textmarker-region (start end)  ;this is the comment
^
  (interactive "r")
  (xref-source-region start end)
  (xref-target-region start end))

INSTEAD of 
(defun textmarker-region (start end)  ;this is the comment
                                      ;^
  (interactive "r")
  (xref-source-region start end)
  (xref-target-region start end))

However when I added more text into the first comment line

(defun textmarker-region (start end)  ;this is the comment but we need
  (interactive "r")
  (xref-source-region start end)
  (xref-target-region start end))

and used fill-paragraph I obtained

(defun textmarker-region (start end)  ;this is the comment
                                      ;but we need
  (interactive "r")
  (xref-source-region start end)
  (xref-target-region start end))

Which is find surprising. Can somebody please clarify me that issue.


thanks

Uwe Brauer