Comment # 7 on bug 1175037 from Dirk Weber

Created attachment 843198 [details]
An RSS article which triggers the problen on my Leap 15.2 system

reproduced the bug with --debug output activated:
claws-mail --debug > claws-debug.log 2>&1

For articles which are processed without problems the debug output looks like
this:

rssyl.c:741:RSSyl: fetch_msg '/home/user/.claws-mail/RSSyl/My Feeds
(RSSyl)/Fefes Blog/1117'
procheader.c:174:generic_get_one_field: empty line
    message/rfc822 (offset:0 length:1509 encoding: 6)
        text/html (offset:737 length:772 encoding: 6)
procheader.c:174:generic_get_one_field: empty line
procheader.c:197:generic_get_one_field: empty line
textview.c:692:TIMING textview_add_part : 0s000ms
textview.c:788:TIMING textview_add_part : 0s005ms
textview.c:805:TIMING recursive_add_parts : 0s005ms
textview.c:851:TIMING recursive_add_parts : 0s006ms
textview.c:631:TIMING textview_show_part : 0s007ms
summaryview.c:3823:TIMING summary_display_msg_full : 0s011ms

And the article is deiplayed in the message preview.

For the attached message '1116' which can not be processed the log stalls and
claws-mail enters a busy loop, the message preview window is not updated, it
still shows the previous article:

rssyl.c:741:RSSyl: fetch_msg '/home/user/.claws-mail/RSSyl/My Feeds
(RSSyl)/Fefes Blog/1116'
procheader.c:174:generic_get_one_field: empty line
    message/rfc822 (offset:0 length:708 encoding: 6)
        text/html (offset:327 length:381 encoding: 6)
procheader.c:174:generic_get_one_field: empty line
procheader.c:197:generic_get_one_field: empty line
textview.c:692:TIMING textview_add_part : 0s000ms


so the textview.c lines after 692 are missing.