$ git clone -n https://src.fedoraproject.org/rpms/kinfocenter.git /var/lib/mock/f41-build-side-1-2878807-34446/root/chroot_tmpdir/scmroot/kinfocenter
Cloning into '/var/lib/mock/f41-build-side-1-2878807-34446/root/chroot_tmpdir/scmroot/kinfocenter'...
$ git fetch origin bcfa560997d1bc09abd779ac08bdc0b688de2c46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kinfocenter
 * [new ref]         bcfa560997d1bc09abd779ac08bdc0b688de2c46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bcfa560 6.2.0