1125160 - Thunderbird ignores some RSS items in feed reader

Status: RESOLVED INVALID

(MailNews Core :: Feed Reader, defect)

Description

[Luke Plant]

Attachment: planetpython_rss.xml

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0
Build ID: 20150112203352

Steps to reproduce:

I added Planet Python's RSS feed to Thunderbird.

URL - http://planetpython.org/rss20.xml - snapshot will be attached.


Actual results:

22 out of 25 RSS items appeared. The other 3 were ignored. In particular, the items:

Caktus Consulting Group: Caktus is looking for a Web Design Director
Django Weblog: Django Fellowship Program: A retrospective
Luke Plant: IPython Notebook Essentials review



Expected results:

All 25 should have appeared.

I have validated it, and the feed is a valid RSS file, so I can't see why these would be ignored.

I don't think this is a random error. As you notice from my name (Luke Plant), my post is one of the ones that is missing, and it is always missing from the Planet Python feed.

Comment 1

[alta88]

All 25 of the feeds in the attached file are stored correctly for me.  The only way they are skipped by dupe checking is if their <guid> already exists in feeditems.rdf and is being reused, which is publisher error.

To demonstrate a bug, you would need to attach the error console log, a feeditems.rdf that didn't contain a skipped message's <guid>, and the xml file containing a skipped item.  Feel free to reopen in such a case.

See also the dupe FAQ here:
https://support.mozilla.org/en-US/kb/how-subscribe-news-feeds-and-blogs

Comment 2

[Luke Plant]

Aha, OK, I guess that feeditems.rdf is a global dupe checking mechanism. The skipped posts were all included in other feeds. I guess this is actually useful behaviour, just confusing when you are looking at one feed in isolation.

Thanks for taking the time to look at this.