$ git clone -n https://src.fedoraproject.org/rpms/gtkmm30.git /var/lib/mock/f31-build-50812-27436/root/chroot_tmpdir/scmroot/gtkmm30
Cloning into '/var/lib/mock/f31-build-50812-27436/root/chroot_tmpdir/scmroot/gtkmm30'...
$ git reset --hard 1579855f023c1ee7b7528dcb4693b69bf905e65f
HEAD is now at 1579855 Update to 3.24.1