Description of problem:

In evolution, dragging a mail message behaves differently under X11 than Wayland.  Under X11 when dragging a message from the current folder to another folder, the message is moved.  In Wayland the message is copied.

The action is described, in text, at the bottom of the window in the status bar while the action is busy.  Under X11 it writes "Moving messages to folder ... " under Wayland it writes "Copying messages to folder ..."


Version-Release number of selected component (if applicable):

evolution-3.18.0-1.fc23.x86_64


How reproducible:

Every time under Wayland


Steps to Reproduce:

1. Start evolution, with at least one message and at least two folders
2. Select the message
3. Drag the message to the other folder


Actual results:

The message is copied


Expected results:

The message is moved


Additional info:

I wrote "folder" instead of "mailbox" because I generally use subfolders.  I only tested on IMAP, but I tested against different IMAP servers.