Version:           korganizer 3.5.3, kontact 1.2.3, kde 3.5.4 (using KDE KDE 3.5.4)
Installed from:    Fedora RPMs

When I have open the edit dialog for a to-do item while its data source, a remote iCalendar file on a WebDAV server, reloads (whether automatically or manually), then a double to-do item appears in the to-do list.

To reproduce:
1. Create a remote calendar on a WebDAV server (maybe any kind of calendar works?)
2. Create a to-do item "foo"
3. Edit the to-do item "foo"
4. Reload the calendar without closing the non-modal "edit to-do" dialog
5. In the "edit to-do" dialog, save

Actual results:
The item "foo" appears twice in the to-do list.