* gnus-art.el (gnus-article-edit-part): Don't modifiy markers.
(gnus-article-read-summary-keys):
Don't bug out when there is no article in the summary buffer.
+ (gnus-mime-buttonize-attachments-in-header):
+ Improve criterion that finds parts to display.
* gnus-art.el (gnus-mm-display-part):
* mm-decode.el (mm-shr):