Not Secure. invalid literal for long() with base 10

[raushanraj]

I just edit the values of ManytoManyField i.e;autocompleteselectmultiple.Using Firebug,i change the value field to ## value="|1|2@|" .I get 500 error. invalid literal for long() with base 10: '2@'

input type="hidden" data-plugin-options="{"min_length": 1, "html": true, "source": "/admin/lookups/ajax_lookup/university"}" data-ajax-select="autocompleteselectmultiple" value="|1|" id="id_university" name="university"

[raushanraj]

[crucialfelix]

Fixed with the new release, though Django itself may throw invalidation errors with this input