$ git clone -n https://src.fedoraproject.org/rpms/optipng.git /var/lib/mock/f31-build-66266-29847/root/chroot_tmpdir/scmroot/optipng
Cloning into '/var/lib/mock/f31-build-66266-29847/root/chroot_tmpdir/scmroot/optipng'...
$ git reset --hard 1bacb5650d4ed299e270436e72278ba8e6606ba7
HEAD is now at 1bacb56 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild