Chef server internal error (11.08)

Tried the new version of chef-server 11.08 and looks like is broken. There is a bug into the jira CHEF-4339. I tried onto CentOS but looks like Ubuntu is broken as well (see bug description). How to see the error logs

$ chef-server-ctl tail

==> /var/log/chef-server/nginx/access.log <==
192.168.122.1 - - [20/Oct/2013:14:56:42 +0000]  "PUT /sandboxes/000000000000a38d5dd8e2763f913c6c HTTP/1.1" 500 "8.109" 36 "-" "Chef Knife/11.6.0 (ruby-1.9.3-p429; ohai-6.18.0; x86_64-linux; +http://opscode.com)" "127.0.0.1:8000" "500" "8.049" "11.6.0" "algorithm=sha1;version=1.0;" "chef-user" "2013-10-20T14:54:00Z" "oMRtV6loUDnbKJuGcW6nqBbF8ww=" 1029

==> /var/log/chef-server/erchef/current <==
2013-10-20_14:56:42.62140 
2013-10-20_14:56:42.62144 =ERROR REPORT==== 20-Oct-2013::14:56:42 ===
2013-10-20_14:56:42.62145 webmachine error: path="/sandboxes/000000000000a38d5dd8e2763f913c6c"
2013-10-20_14:56:42.62145 {error,
2013-10-20_14:56:42.62146     {throw,
2013-10-20_14:56:42.62146         {checksum_check_error,26},
2013-10-20_14:56:42.62146         [{chef_wm_named_sandbox,validate_checksums_uploaded,2,
2013-10-20_14:56:42.62147              [{file,"src/chef_wm_named_sandbox.erl"},{line,144}]},
2013-10-20_14:56:42.62147          {chef_wm_named_sandbox,from_json,2,
2013-10-20_14:56:42.62148              [{file,"src/chef_wm_named_sandbox.erl"},{line,99}]},
2013-10-20_14:56:42.62148          {webmachine_resource,resource_call,3,
2013-10-20_14:56:42.62148              [{file,"src/webmachine_resource.erl"},{line,166}]},
2013-10-20_14:56:42.62149          {webmachine_resource,do,3,
2013-10-20_14:56:42.62149              [{file,"src/webmachine_resource.erl"},{line,125}]},
2013-10-20_14:56:42.62150          {webmachine_decision_core,resource_call,1,
2013-10-20_14:56:42.62150              [{file,"src/webmachine_decision_core.erl"},{line,48}]},
2013-10-20_14:56:42.62150          {webmachine_decision_core,accept_helper,0,
2013-10-20_14:56:42.62151              [{file,"src/webmachine_decision_core.erl"},{line,583}]},
2013-10-20_14:56:42.62151          {webmachine_decision_core,decision,1,
2013-10-20_14:56:42.62151              [{file,"src/webmachine_decision_core.erl"},{line,489}]},
2013-10-20_14:56:42.62152          {webmachine_decision_core,handle_request,2,
2013-10-20_14:56:42.62153              [{file,"src/webmachine_decision_core.erl"},{line,33}]}]}}

==> /var/log/chef-server/erchef/erchef.log.1 <==
2013-10-20T14:56:42Z erchef@127.0.0.1 ERR req_id=rOkhxZcSowyaKaD+WsjFKg==; status=500; method=PUT; path=/sandboxes/000000000000a38d5dd8e2763f913c6c; user=chef-user; msg=[]; req_time=8043; rdbms_time=5; rdbms_count=2; s3_time=8028; s3_count=1

However the integration tests all pass ...

$ chef-server-ctl test

...

Sandboxes API Endpoint
  Sandboxes Endpoint, POST
    when creating a new sandbox
      should respond with 201 Created
  Sandboxes Endpoint, PUT
    when committing a sandbox after uploading files
      should respond with 200 OK
Deleting client pedant_admin_client ...
Deleting client pedant_client ...
Pedant did not create the user admin, and will not delete it
Deleting user pedant_non_admin_user ...
Deleting user knifey ...

Finished in 54.02 seconds
70 examples, 0 failures

Hopefully will be fixed soon.