$ git clone -n https://src.fedoraproject.org/rpms/plymouth-kcm.git /var/lib/mock/f41-build-side-1-2674928-29288/root/chroot_tmpdir/scmroot/plymouth-kcm
Cloning into '/var/lib/mock/f41-build-side-1-2674928-29288/root/chroot_tmpdir/scmroot/plymouth-kcm'...
$ git fetch origin 0a01482697e4aee2210662b9877ade509da55701:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plymouth-kcm
 * [new ref]         0a01482697e4aee2210662b9877ade509da55701 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a01482 6.1.90