wmctrl -R changes Activities

[David Lawrence]

wmctrl -R is documented to do this:
    -R <WIN>
              Move the window <WIN> to the current desktop, raise the window, and give it focus.

But when I do that while using KDE activities, it changes my activity to the activity containing the desktop that currently has the window and then moves the window in that activity to the desktop in the same location as I was using in the original activity.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: wmctrl 1.07-7build1
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: KDE
Date: Mon Feb 11 08:47:49 2019
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-03-14 (333 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1)
SourcePackage: wmctrl
UpgradeStatus: No upgrade log present (probably fresh install)