$ git clone -n https://src.fedoraproject.org/rpms/gtkmm30.git /var/lib/mock/f33-build-556421-65506/root/chroot_tmpdir/scmroot/gtkmm30
Cloning into '/var/lib/mock/f33-build-556421-65506/root/chroot_tmpdir/scmroot/gtkmm30'...
$ git reset --hard 3c0026dc5a202532089a6351765b3248f7866dcc
HEAD is now at 3c0026d Update to 3.24.4