Allow disabling sending of state parameter

This bug was fixed in the package signon-plugin-oauth2 - 0.22+15.10.20150603-0ubuntu1

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signon-plugin-oauth2 (0.22+15.10.20150603-0ubuntu1) wily; urgency=medium

  [ Alberto Mardegan ]
  * Merge from upstream
    - Fix unreliable test
    - Disconnect from reply on SSL errors (LP: #1447119)
    - Allow disabling the "state" parameter (LP: #1449268)

signon-plugin-oauth2 (0.22+15.04.20150417-0ubuntu1) vivid; urgency=medium

  [ Alberto Mardegan ]
  * New upstream release
    - Return the list of granted permissions to the client
    - Require Qt5 for building
    - Use a "state" parameter to protect against CSRF (LP: #1432857)

  [ CI Train Bot ]
  * New rebuild forced.

signon-plugin-oauth2 (0.21+15.04.20150327-0ubuntu1) vivid; urgency=medium

  * New rebuild forced.

signon-plugin-oauth2 (0.21+15.04.20150319-0ubuntu1) vivid; urgency=medium

  [ Alberto Mardegan ]
  * Remove dependency on signon-ui (LP: #1362640)

signon-plugin-oauth2 (0.21+15.04.20150128-0ubuntu2) UNRELEASED; urgency=medium

  * Merge from upstream
    - Proceed with the normal authentication if an error occurs when using the
      RefreshToken (LP: #1420934)
    - Remove the unused "type" query parameters which breaks DropBox

signon-plugin-oauth2 (0.21+15.04.20150128-0ubuntu1) vivid; urgency=medium

  [ Alberto Mardegan ]
  * New upstream release
    - Add ForceTokenRefresh flag for forcing a new token
    - OAuth2: implement a fallback mechanism when parsing replies
      (LP: #1415376)
    - Fixes build with -Werror=unused-variable
    - Improve test coverage

signon-plugin-oauth2 (0.20+15.04.20141110-0ubuntu1) vivid; urgency=low

  [ Ubuntu daily release ]
  * New rebuild forced

  [ Alberto Mardegan ]
  * Merge from upstream

signon-plugin-oauth2 (0.20+15.04.20141031-0ubuntu1) vivid; urgency=low

  [ Ubuntu daily release ]
  * New rebuild forced

  [ Alberto Mardegan ]
  * Delay instantiation of QNetworkAccessManager (LP: #1377181)

signon-plugin-oauth2 (0.20+14.10.20140912.1-0ubuntu1) utopic; urgency=medium

  [ Alberto Mardegan ]
  * New upstream release
    - OAuth 2.0: follow the spec more closely, add Vimeo support
    - Tests: increase test coverage

signon-plugin-oauth2 (0.19+14.10.20140513-0ubuntu1) utopic; urgency=low

  [ Ubuntu daily release ]
  * New rebuild forced

  [ Alberto Mardegan ]
  * Do not store invalid expiration times (LP: #1316021)

signon-plugin-oauth2 (0.19+14.10.20140509.2-0ubuntu1) utopic; urgency=low

  [ Ubuntu daily release ]
  * New rebuild forced

  [ Robert Bruce Park ]
  * Correct path in debian/signon-plugin-oauth2.install fixes FTBFS (LP:
    #1317986) (LP: #1317986)

signon-plugin-oauth2 (0.19+14.04.20140305-0ubuntu2) trusty; urgency=medium

  * Build for Architecture:any.

signon-plugin-oauth2 (0.19+14.04.20140305-0ubuntu1) trusty; urgency=low

  [ CI bot ]
  * No change rebuild against Qt 5.2.1.

  [ Ubuntu daily release ]
  * New rebuild forced

signon-plugin-oauth2 (0.19+14.04.20131126.2-0ubuntu1) trusty; urgency=low

  [ Alberto Mardegan ]
  * New upstream release (0.19)
    - OAuth 1.0a: allow oauth_token_secret to be empty.
  * New upstream release (0.18)
    - OAuth2: Allow clients to provide tokens to store...

The "can't log into Instagram" bug 1466232 that was marked a dup of this is not yet fixed.

phablet@ubuntu-phablet:~$ apt-cache policy signon-plugin-oauth2
signon-plugin-oauth2:
  Installed: 0.22+15.04.20150603-0ubuntu1

phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 49
device name: krillin
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-06-25 13:01:42
version version: 49
version ubuntu: 20150625
version device: 20150529-8e13c5f
version custom: 20150528-722-29-15-vivid

The instagram plugin indeed had the problem which was fixed by this change, so the duplicate status is not totally wrong.

Please file a new bug, providing the syslog.

instagram bug in: LP: #1481082

@kyle, please mark this as fix release if you also agree that instagram is not belong to here.