$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f40-build-1509046-23893/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f40-build-1509046-23893/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin 3d6b89f10badc53de1fdab302dbc11451b4674ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace
 * [new ref]         3d6b89f10badc53de1fdab302dbc11451b4674ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d6b89f Merge branch 'rawhide' into f40