604920 - can't change or delete a subscribed feed in a feed-folder

Status: RESOLVED DUPLICATE of bug 560396

(MailNews Core :: Feed Reader, defect)

Description

[Jakob Heiss]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10 ( .NET CLR 3.5.30729; .NET4.0C)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.2.9) Gecko/20100915 Lightning/1.0b2 Thunderbird/3.1.4 ThunderBrowse/3.3.2

I am following a saved* Google-News-Search-RSS-feed in my Thunderbird. I changed this saved Google-News-Search at my Google-Account and now I want to change it at my Thunderbird too, of course. When I try to change it, I can't change the address of this feed. And I can't delete this feed. When I want to add the new Google-News-Search-RSS-feed (so that the old and the new one should be in the same folder) Thunderbird says: "Sie haben diesen Feed bereits abonniert" (translated in English: "You have already subscribed to this feed /You are already following this feed /  You already subscribed to this feed.") and doesn't add it. 

*)This Google-News-Search is saved at my Google-Account.

work-around: don't subscribe the saved Google-News-Search in Thunderbird in the first place. Instead you can add an unsaved Google-News-search (that can be identical to the saved one) in Thunderbird.

Reproducible: Always

Comment 1

[Ludovic Hirlimann [:Usul]]

What do you get in Tools -> errror console when this happens ?

Comment 2

[Jakob Heiss]

"Fehler: uncaught exception: [Exception... "Component returned failure code: 0x80004003 (NS_ERROR_INVALID_POINTER) [nsIRDFDataSource.Unassert]"  nsresult: "0x80004003 (NS_ERROR_INVALID_POINTER)"  location: "JS frame :: chrome://messenger-newsblog/content/utils.js :: deleteFeed :: line 127"  data: no]"

"Fehler"(German)="error"(English)