$ git clone -n https://src.fedoraproject.org/rpms/libpng12.git /var/lib/mock/f33-build-126923-40162/root/chroot_tmpdir/scmroot/libpng12
Cloning into '/var/lib/mock/f33-build-126923-40162/root/chroot_tmpdir/scmroot/libpng12'...
$ git reset --hard d663c3fea17066debcdd35583e7883142e528d61
HEAD is now at d663c3f - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild