$ git clone -n https://src.fedoraproject.org/rpms/libglpng.git /var/lib/mock/f31-build-68974-30255/root/chroot_tmpdir/scmroot/libglpng
Cloning into '/var/lib/mock/f31-build-68974-30255/root/chroot_tmpdir/scmroot/libglpng'...
$ git reset --hard 3785b3974ef4c5d7d970541296b3091465a854eb
HEAD is now at 3785b39 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild