I've observed this behavior, and I'm marking confirmed because the "fix" is in no way obvious. Pressing ctrl+H on a collapsed thread selects everything underneith it.
** Changed in: evolution (Ubuntu) Status: Unconfirmed => Confirmed -- Cannot drag-and-drop entire thread https://launchpad.net/bugs/21157 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs