error handling blank field -> unable to edit contacts

[Lorenzo Zolfanelli]

I use the CouchDB for the UbuntOne service offered by Canonical on Ubuntu 11.04 (Natty)

I am unable to edit any of my contacts, I get this message from Evolution as I try to save:

"GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._e_2ddata_2dbook_2derror.Code400: Cannot modify contact: Bad Request"

My output on console for e-addressbook-factory is:

"(e-addressbook-factory:16374): Couchdb-GLib-CRITICAL **: couchdb_document_contact_set_company: assertion `company != NULL' failed

(e-addressbook-factory:16374): Couchdb-GLib-CRITICAL **: couchdb_document_contact_set_department: assertion `department != NULL' failed

(e-addressbook-factory:16374): Couchdb-GLib-CRITICAL **: couchdb_document_contact_set_office: assertion `office != NULL' failed

(e-addressbook-factory:16374): Couchdb-GLib-CRITICAL **: couchdb_document_contact_set_categories: assertion `categories != NULL' failed

(e-addressbook-factory:16374): Json-CRITICAL **: json_node_get_node_type: assertion `node != NULL' failed

** (e-addressbook-factory:16374): WARNING **: Could not PUT document: \u0005
"

I am not always able to reproduce this bug..sometimes everything just works.
I found that when I can't save a contact a workaround is to put some random stuff in one or more of that field (categories, office, company..)

versions:
Ubuntu 11.04 Natty stable (64bit edition)
evolution 2.32.2-0ubuntu7
evolution-couchdb 0.5.3-0ubuntu2
couchdb-bin 1.0.1-0ubuntu15
libcouchdb-glib-1.0-2 0.7.2-0ubuntu3

[Lorenzo Zolfanelli (lorenzo-zolfa)]

I think that in
e-book-backend-couchdb.c
lines 760-770 have to be edited with some "if( x != NULL)" conditions, but I am not sure, I don't know much about this backend and couchdb
(http://bazaar.launchpad.net/~vcs-imports/evolution-couchdb/trunk/view/head:/addressbook/e-book-backend-couchdb.c)