$ git clone -n https://src.fedoraproject.org/rpms/libpng15.git /var/lib/mock/f33-build-293297-55079/root/chroot_tmpdir/scmroot/libpng15
Cloning into '/var/lib/mock/f33-build-293297-55079/root/chroot_tmpdir/scmroot/libpng15'...
$ git reset --hard a8344f82ac445592c2414587cf23b664ca2a7cbe
HEAD is now at a8344f8 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild