$ git clone -n https://src.fedoraproject.org/rpms/octomap.git /var/lib/mock/f45-build-20863-574/root/chroot_tmpdir/scmroot/octomap
Cloning into '/var/lib/mock/f45-build-20863-574/root/chroot_tmpdir/scmroot/octomap'...
$ git fetch origin f2d6a47079f6e22cfbcda35a1bded11a8057f5fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octomap
 * [new ref]         f2d6a47079f6e22cfbcda35a1bded11a8057f5fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2d6a47 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild