$ git clone -n https://src.fedoraproject.org/rpms/gtk+.git /var/lib/mock/f31-build-50753-27432/root/chroot_tmpdir/scmroot/gtk+
Cloning into '/var/lib/mock/f31-build-50753-27432/root/chroot_tmpdir/scmroot/gtk+'...
$ git reset --hard 47558ed5a27c1a027f44f9ccfea98531c8e5db96
HEAD is now at 47558ed - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild