$ git clone -n https://src.fedoraproject.org/rpms/gwenview.git /var/lib/mock/f42-bootstrap-3533756-46421/root/chroot_tmpdir/scmroot/gwenview
Cloning into '/var/lib/mock/f42-bootstrap-3533756-46421/root/chroot_tmpdir/scmroot/gwenview'...
$ git fetch origin bf7b5d4426265650f4566bc23ee6309bdde2e972:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gwenview
 * [new ref]         bf7b5d4426265650f4566bc23ee6309bdde2e972 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf7b5d4 25.04.1