fixed space not honourd in invite link

cookbook/admin.py

@@ -257,7 +257,7 @@ admin.site.register(ViewLog, ViewLogAdmin)
 
 class InviteLinkAdmin(admin.ModelAdmin):
     list_display = (
-        'group', 'valid_until',
+        'group', 'valid_until','space',
         'created_by', 'created_at', 'used_by'
     )
 

cookbook/views/new.py

@@ -201,6 +201,9 @@ class InviteLinkCreate(GroupRequiredMixin, CreateView):
     def form_valid(self, form):
         obj = form.save(commit=False)
         obj.created_by = self.request.user
+
+        # verify given space is actually owned by the user creating the link
+        if obj.space.created_by != self.request.user:
             obj.space = self.request.space
         obj.save()
         if obj.email: