Add multiple metadata not possible

Hi Roberto when I try to add multiple metadata i get the following error:

ValueError at /metadata/multiple/edit/

invalid literal for int() with base 10: "['530'"

Request Method:	GET
Request URL:	http://htpc/metadata/multiple/edit/?id_list=%5B%27530%27%2C+%27529%27%5D&next=http%3A%2F%2Fhtpc%2Fdocuments%2Flist%2F
Django Version:	1.7.10
Exception Type:	ValueError
Exception Value:	

invalid literal for int() with base 10: "['530'"

Exception Location:	/home/elem/pythonenvs/mayan11/lib/python2.7/site-packages/django/db/models/fields/__init__.py in get_prep_value, line 915
Python Executable:	/home/elem/pythonenvs/mayan11/bin/python
Python Version:	2.7.6
Python Path:	

['/home/elem/pythonenvs/mayan11/lib/python2.7/site-packages',
 '/home/elem/pythonenvs/mayan11/bin',
 '/home/elem/pythonenvs/mayan11/lib/python2.7',
 '/home/elem/pythonenvs/mayan11/lib/python2.7/plat-x86_64-linux-gnu',
 '/home/elem/pythonenvs/mayan11/lib/python2.7/lib-tk',
 '/home/elem/pythonenvs/mayan11/lib/python2.7/lib-old',
 '/home/elem/pythonenvs/mayan11/lib/python2.7/lib-dynload',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-x86_64-linux-gnu',
 '/usr/lib/python2.7/lib-tk',
 '/home/elem/pythonenvs/mayan11/local/lib/python2.7/site-packages',
 u'/home/elem/pythonenvs/mayan11/lib/python2.7/site-packages/mayan/apps',
 '/home/elem/pythonenvs/mayan11/lib/python2.7/site-packages']

Server time:	Wed, 6 Jan 2016 13:36:30 +0000

Looks like the issue is in view: metadata_add(request, document_id=None, document_id_list=None)

while preparing the redirect to metadata_multiple_edit:

                return HttpResponseRedirect('%s?%s' % (
                    reverse('metadata:metadata_multiple_edit'),
                    urlencode({'id_list': document_id_list, 'next': next}))

document_id_list is a list and rendered like that: '[2, 3]' into the url.

Possible fix: change line

                    urlencode({'id_list': document_id_list, 'next': next}))

to:

                    urlencode({'id_list': ', '.join(map(str, document_id_list)), 'next': next}))

br Matthias