Bug#561779: Markers for range selections not updated as necessary
package: kmail
version: 4:4.3.2-1
severity: critical
After several operations on a folder the marker for the currently selected
message is not updated correctly. It seems that there are actually two
markers, one for the GUI, which is handled correctly, and one for internal
uses, which isn't. The latter one seems to be an index which isn't updated in
several cases.
Example:
* Select the first mail in a folder.
* Now change the sorting order.
* The previously selected message is still highlighted by the GUI, let's
assume that it now is at position 6 in the list of messages.
* Hold the shift key and click on the message at position 3 in the list.
At this point now, I would expect that messages at the position 3, 4, 5, 6 are
highlighted. Instead, messages at position 1, 2, 3 are highlighted, while the
highlight on position 6 is removed.
Similarly, when deleting mails the first following mail is highlighted by the
GUI while the internal index isn't.
Concerning the severity and why this is not just an annoyance, the reason is
that it is not always obvious what is going on when the start of the selection
range isn't visible. I was just cleaning up some old mails and there was one
from a source which I don't care for any more. I selected that, changed the
selection to "sort by author", scrolled down the list, shift-selected the last
of them and deleted them. Since the start of the selection remained close to
the beginning of the whole folder, far out of view, this just cost me a few
hundred mails.
Uli
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