Review texts will not fail when reviewing many to a conference with few texts

src/ChangeLog

 2000-08-10  David Byers  <davby@ida.liu.se>
 
+	Fix review many to conferences with few texts:
+	* review.el (lyskom-get-letters-to): Protect nthcdr from negative
+	arguments. 
+	(lyskom-get-texts-by-and-to): Ditto.
+	(lyskom-get-texts-by-generic): Ditto.
+	(lyskom-get-texts-to): Ditto.
+
+	Fix kom-super-jump on empty subject:
 	* filter.el (kom-super-jump): Protect empty subject with ^$.
 
 2000-08-01  David Byers  <davby@ida.liu.se>
 
+	Menus were sometimes very wide:
 	* lyskom-buttons.el (lyskom-make-button-menu): Truncate menu title
 	to 43 characters.
 

src/review.el

@@ -459,7 +459,7 @@ Cannot be called from a callback."
           (progn
             (setq lyskom-last-review-saved-result-list 
                   (nfirst (- (length result) num) result))
-            (nthcdr (- (length result) num) result))
+            (nthcdr (max 0 (- (length result) num)) result))
         (progn
           (setq lyskom-last-review-saved-result-list
                 (nthcdr (- num) result))
@@ -740,7 +740,7 @@ Args: persno confno num &optional again pstart cstart"
               (setq lyskom-last-review-saved-result-list
                     (cons lyskom-last-review-saved-result-list
                           (make-list (- (length by-list) 1) nil)))
-              (nthcdr (- (length result-list) num) result-list))
+              (nthcdr (max 0 (- (length result-list) num)) result-list))
 
           (progn
             (setq lyskom-last-review-saved-result-list 
@@ -862,7 +862,7 @@ Cannot be called from a callback."
           (progn
             (setq lyskom-last-review-saved-result-list 
                   (nfirst (- (length result) num) result))
-            (nthcdr (- (length result) num) result))
+            (nthcdr (max 0 (- (length result) num)) result))
         (progn
           (setq lyskom-last-review-saved-result-list
                 (nthcdr (- num) result))
@@ -929,7 +929,7 @@ Cannot be called from a callback."
           (progn
             (setq lyskom-last-review-saved-result-list 
                   (nfirst (- (length result) num) result))
-            (nthcdr (- (length result) num) result))
+            (nthcdr (max 0 (- (length result) num)) result))
         (progn
           (setq lyskom-last-review-saved-result-list
                 (nthcdr (- num) result))