diff --git a/CHANGES.md b/CHANGES.md
index 9fe5181a9..23399c70a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,7 @@
  - 2016-10-28 Implemented issue#[317](https://github.com/zammad/zammad/issues/317) - Display origin url from tweet/facebook post in article view.
 
 ## Zammad 1.0.1
+ - 2016-11-04 Fixed issue#[312](https://github.com/zammad/zammad/issues/312) - In object manager, blank line in object deleted all values for selections.
  - 2016-11-04 Fixed issue#[286](https://github.com/zammad/zammad/issues/286) - Answers from google mail shows complete quote.
  - 2016-11-03 Fixed issue#[348](https://github.com/zammad/zammad/issues/348) - IMAP mail fetching stops because of broken spam email (invalid Content-Transfer-Encoding header)
  - 2016-10-29 Fixed issue#[326](https://github.com/zammad/zammad/issues/326) - Create emails via fetchmail / procmail.
diff --git a/app/assets/javascripts/app/controllers/_application_controller_form.coffee b/app/assets/javascripts/app/controllers/_application_controller_form.coffee
index 571d3d5c4..bba8696a8 100644
--- a/app/assets/javascripts/app/controllers/_application_controller_form.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller_form.coffee
@@ -108,7 +108,7 @@ class App.ControllerForm extends App.Controller
     if @fullForm
       if !@formClass
         @formClass = ''
-      fieldset = $('<form class="' + @formClass + '"><button class="btn">' + App.i18n.translateContent('Submit') + '</button></form>').prepend( fieldset )
+      fieldset = $('<form class="' + @formClass + '" autocomplete="off"><button class="btn">' + App.i18n.translateContent('Submit') + '</button></form>').prepend( fieldset )
 
     # bind form events
     if @events
@@ -489,21 +489,21 @@ class App.ControllerForm extends App.Controller
     inputSelectObject = {}
     for key of param
       parts = key.split '::'
-      if parts[0] && parts[1]
-        if parts[1] && !inputSelectObject[ parts[0] ]
+      if parts[0] && parts[1] isnt undefined
+        if parts[1] isnt undefined && !inputSelectObject[ parts[0] ]
           inputSelectObject[ parts[0] ] = {}
-        if parts[2] && !inputSelectObject[ parts[0] ][ parts[1] ]
+        if parts[2] isnt undefined && !inputSelectObject[ parts[0] ][ parts[1] ]
           inputSelectObject[ parts[0] ][ parts[1] ] = {}
-        if parts[3] && !inputSelectObject[ parts[0] ][ parts[1] ][ parts[2] ]
+        if parts[3] isnt undefined && !inputSelectObject[ parts[0] ][ parts[1] ][ parts[2] ]
           inputSelectObject[ parts[0] ][ parts[1] ][ parts[2] ] = {}
 
-        if parts[3]
+        if parts[3] isnt undefined
           inputSelectObject[ parts[0] ][ parts[1] ][ parts[2] ][ parts[3] ] = param[ key ]
           delete param[ key ]
-        else if parts[2]
+        else if parts[2] isnt undefined
           inputSelectObject[ parts[0] ][ parts[1] ][ parts[2] ] = param[ key ]
           delete param[ key ]
-        else if parts[1]
+        else if parts[1] isnt undefined
           inputSelectObject[ parts[0] ][ parts[1] ] = param[ key ]
           delete param[ key ]
 
diff --git a/app/assets/javascripts/app/controllers/_ui_element/select.coffee b/app/assets/javascripts/app/controllers/_ui_element/select.coffee
index ada6c0b07..da812722e 100644
--- a/app/assets/javascripts/app/controllers/_ui_element/select.coffee
+++ b/app/assets/javascripts/app/controllers/_ui_element/select.coffee
@@ -30,4 +30,4 @@ class App.UiElement.select extends App.UiElement.ApplicationUiElement
     @filterOption(attribute, params)
 
     # return item
-    $( App.view('generic/select')( attribute: attribute ) )
\ No newline at end of file
+    $( App.view('generic/select')(attribute: attribute) )
diff --git a/public/assets/tests/form.js b/public/assets/tests/form.js
index bd6ec621f..2343a2ccc 100644
--- a/public/assets/tests/form.js
+++ b/public/assets/tests/form.js
@@ -551,9 +551,9 @@ test("form handler check with and without fieldset", function() {
   }
 
   var formChanges = function(params, attribute, attributes, classname, form, ui) {
-    console.log('FROM', form)
+    //console.log('FROM', form)
     if (params['select1'] === 'b') {
-      console.log('lala', params)
+      //console.log('select1 -> b', params)
       var item = {
         name:    'select2',
         display: 'Select2',
@@ -566,7 +566,7 @@ test("form handler check with and without fieldset", function() {
       form.find('[name="select2"]').closest('.form-group').replaceWith(newElement)
     }
     if (params['select1'] === 'a') {
-      console.log('lala', params)
+      //console.log('select1 -> a', params)
       var item = {
         name:    'select2',
         display: 'Select2',
@@ -938,8 +938,35 @@ test("form params check", function() {
     select3: '',
     select4: '',
   }
-  console.log('params', params)
-  console.log('test_params', test_params)
+  //console.log('params', params)
+  //console.log('test_params', test_params)
+  deepEqual(params, test_params, 'form param check')
+
+});
+
+test("form params check direct", function() {
+
+  $('#forms').append('<hr><h1>form params check direct</h1><form id="form10"><input name="a" value="b"><input name="l::l::l1" value="d"><input name="l::l::" value><input name="f::f::" value><input name="f::f::f1" value="e"></form>')
+  var el = $('#form10')
+
+  params = App.ControllerForm.params(el)
+  test_params = {
+    a: 'b',
+    l: {
+      l: {
+        l1: 'd',
+        '': '',
+      },
+    },
+    f: {
+      f: {
+        f1: 'e',
+        '': '',
+      },
+    },
+  }
+  //console.log('params', params)
+  //console.log('test_params', test_params)
   deepEqual(params, test_params, 'form param check')
 
 });