$ git clone -n https://src.fedoraproject.org/rpms/gtk+.git /var/lib/mock/f31-build-95381-32557/root/chroot_tmpdir/scmroot/gtk+
Cloning into '/var/lib/mock/f31-build-95381-32557/root/chroot_tmpdir/scmroot/gtk+'...
$ git reset --hard a844741e73a29da749121c790ba6bd8f7a44896f
HEAD is now at a844741 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild