EntityMalformedException on saving node

[geek-merlin]

Some node save gives us this exception. No wonder - we can't rely on $form['#entity'] and must also check $form["#$entity_type"]

EntityMalformedException: Missing bundle property on entity of type node. inentity_extract_ids() (line 7880 of/www/htdocs/w013cb01/dev.consent.works/www/includes/common.inc). Backtrace:
entity_extract_ids('node', NULL) og.module:764
og_form_group_reference_validate(Array, Array) form.inc:1519
form_execute_handlers('validate', Array, Array) form.inc:1459
_form_validate(Array, Array, 'domain_scope_node_form') form.inc:1189
drupal_validate_form('domain_scope_node_form', Array, Array) form.inc:889
drupal_process_form('domain_scope_node_form', Array, Array) form.inc:385
drupal_build_form('domain_scope_node_form', Array) form.inc:130
drupal_get_form('domain_scope_node_form', Object) node.pages.inc:14
node_page_edit(Object) 
call_user_func_array('node_page_edit', Array) menu.inc:527
menu_execute_active_handler() index.php:21

[geek-merlin]

Tested the above fix worksforme.