502900 - folder.hasSubFolders returns false until I call folder.subFolders.

Status: NEW

(Thunderbird :: Folder and Message Lists, defect)

Description

[Blake Winton (:bwinton) (:☕️)]

Attachment: A patch to demonstrate the changing values.

I was trying to fix Bug 465269, when I ran into a failing check at http://mxr.mozilla.org/comm-central/source/mailnews/base/resources/content/folderWidgets.xml#434 for a folder that I knew had sub-folders.  (It was the root folder of a server, I believe.)

With the attached patch applied, when I start up, I see in the console log:

XXXXXX
folder.hasSubFolders 1 =false
folder.hasSubFolders 2 =false
folder.hasSubFolders 3 =true

which seems, in the words of jminta, "very sad and a scary bug".  :)

I've got a workaround, so it doesn't really block 465269.

Thanks,
Blake.

Comment 1

[Andrew Sutherland [:asuth] (he/him)]

MailUtils.discoverFolders is the current canonical way to force this:
http://mxr.mozilla.org/comm-central/source/mail/base/modules/MailUtils.js#69

Bienvenu, perhaps this should be explicitly compelled during the creation of the folders or more transparently in an on-demand fashion?