$ git clone -n https://src.fedoraproject.org/rpms/kdeplasma-addons.git /var/lib/mock/f42-build-side-1-3576880-46812/root/chroot_tmpdir/scmroot/kdeplasma-addons
Cloning into '/var/lib/mock/f42-build-side-1-3576880-46812/root/chroot_tmpdir/scmroot/kdeplasma-addons'...
$ git fetch origin 0b9b0f139f4a539e639ba2c50b297fd5928804ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdeplasma-addons
 * [new ref]         0b9b0f139f4a539e639ba2c50b297fd5928804ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b9b0f1 6.4.1