$ git clone -n https://src.fedoraproject.org/rpms/optipng.git /var/lib/mock/f40-build-754020-117559/root/chroot_tmpdir/scmroot/optipng
Cloning into '/var/lib/mock/f40-build-754020-117559/root/chroot_tmpdir/scmroot/optipng'...
$ git reset --hard c726da3b03fbd7e0c43311458604b7273d09adee
HEAD is now at c726da3 Update to 0.7.8