$ git clone -n https://src.fedoraproject.org/rpms/hidviz.git /var/lib/mock/f45-build-13421-450/root/chroot_tmpdir/scmroot/hidviz
Cloning into '/var/lib/mock/f45-build-13421-450/root/chroot_tmpdir/scmroot/hidviz'...
$ git fetch origin e77b01584786ae5b2e151740672119ef1475a0bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hidviz
 * [new ref]         e77b01584786ae5b2e151740672119ef1475a0bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e77b015 Fixed build with boost-1.90