$ git clone -n https://src.fedoraproject.org/rpms/libpng10.git /var/lib/mock/f31-build-94522-32495/root/chroot_tmpdir/scmroot/libpng10
Cloning into '/var/lib/mock/f31-build-94522-32495/root/chroot_tmpdir/scmroot/libpng10'...
$ git reset --hard b92c9b44e74028ceb6a8c9262c479236c7bc73e2
HEAD is now at b92c9b4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild