$ git clone -n https://src.fedoraproject.org/rpms/kinfocenter.git /var/lib/mock/f41-build-824684-154192/root/chroot_tmpdir/scmroot/kinfocenter
Cloning into '/var/lib/mock/f41-build-824684-154192/root/chroot_tmpdir/scmroot/kinfocenter'...
$ git fetch origin 78388210545eb14b22904a942f57f5f0c8bbedd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kinfocenter
 * [new ref]         78388210545eb14b22904a942f57f5f0c8bbedd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7838821 rebuild