$ git clone -n https://src.fedoraproject.org/rpms/plymouth-kcm.git /var/lib/mock/f41-build-858124-168313/root/chroot_tmpdir/scmroot/plymouth-kcm
Cloning into '/var/lib/mock/f41-build-858124-168313/root/chroot_tmpdir/scmroot/plymouth-kcm'...
$ git fetch origin 6202a5f25de8a06a3a3d8122e289eedbf27351be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plymouth-kcm
 * [new ref]         6202a5f25de8a06a3a3d8122e289eedbf27351be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6202a5f 6.2.1