$ git clone -n https://src.fedoraproject.org/rpms/assimp.git /var/lib/mock/f40-build-2198138-51688/root/chroot_tmpdir/scmroot/assimp
Cloning into '/var/lib/mock/f40-build-2198138-51688/root/chroot_tmpdir/scmroot/assimp'...
$ git fetch origin 98ede03e7c0ac0740735c6b3ee34a210df1c9e83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/assimp
 * [new ref]         98ede03e7c0ac0740735c6b3ee34a210df1c9e83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98ede03 Add pugixml and poly2tri devel dependencies to assimp-devel