$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f40-build-2245608-53784/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f40-build-2245608-53784/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin b63a39472a6f8c57b0a7d767599a1235c6c46b41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace
 * [new ref]         b63a39472a6f8c57b0a7d767599a1235c6c46b41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b63a394 Re-enable audiocd-kio recommends