Merge branch '3.8'

Conflicts:
	lib/Alchemy/Phrasea/Controller/Prod/Export.php
	lib/Alchemy/Phrasea/Core/Version.php
	lib/Alchemy/Phrasea/Helper/Prod.php
	lib/Alchemy/Phrasea/SearchEngine/Phrasea/PhraseaEngine.php
	lib/Alchemy/Phrasea/SearchEngine/SphinxSearch/SphinxSearchEngine.php
	lib/classes/User/Adapter.php
	lib/classes/caption/Field/Value.php
	lib/classes/collection.php
	lib/classes/module/report/filter.php
	lib/classes/task/period/ftp.php
	templates/web/common/dialog_export.html.twig
	templates/web/report/ajax_dashboard_content_child.html.twig
	tests/Alchemy/Tests/Phrasea/Controller/Admin/UsersTest.php

www/scripts/apps/admin/fields/views/edit.js

@@ -189,12 +189,16 @@ define([
 
             // get previous index if exists else next index - 1 as item is being deleted
             var index = previousIndex ? previousIndex : (nextIndex ? nextIndex - 1 : -1);
-
             modalView.render();
             modalView.on("modal:confirm", function () {
                 AdminFieldApp.fieldsToDelete.push(self.model);
                 AdminFieldApp.fieldListView.collection.remove(self.model);
-                self._selectModelView(index);
+                // last item is deleted
+                if (index < 0) {
+                    self.remove();
+                } else {
+                    self._selectModelView(index);
+                }
                 // Enable state button, models is out of sync
                 AdminFieldApp.saveView.updateStateButton(false);
             });

www/scripts/apps/admin/fields/views/list.js

@@ -28,7 +28,7 @@ define([
             this.itemViews = [];
 
             // force base 1 indexed
-            if (this.collection.first().get("sorter") === 0) {
+            if (this.collection.length > 0 && this.collection.first().get("sorter") === 0) {
                 this.collection.each(function (model) {
                     model.set({'sorter': model.get("sorter") + 1}, {silent: true});
                 });

www/scripts/apps/admin/fields/views/save.js

@@ -85,14 +85,25 @@ define([
             return this;
         },
         updateStateButton: function (disable) {
-            var toDisable = disable || !this._isModelDesync();
+            var toDisable = !this._isModelDesync();
+            if ("undefined" !== typeof disable) {
+                toDisable = disable;
+            }
+
             this._disableSaveButton(toDisable);
         },
         // check whether model has changed or not
         _isModelDesync: function () {
-            return "undefined" !== typeof AdminFieldApp.fieldsCollection.find(function (model) {
+            var fieldToDelete = false;
+            var fieldToUpdate = false;
+
+            fieldToUpdate = "undefined" !== typeof AdminFieldApp.fieldsCollection.find(function (model) {
                 return !_.isEmpty(model.previousAttributes());
             });
+
+            fieldToDelete = AdminFieldApp.fieldsToDelete.length > 0;
+
+            return fieldToUpdate || fieldToDelete;
         },
         // create a transparent overlay on top of the application
         _overlay: function (showOrHide) {