diff --git a/ChangeLog b/ChangeLog
index 16e0db530d..236ab30643 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -28,6 +28,11 @@ phpMyAdmin - ChangeLog
 
 4.8.5 (not yet released)
 
+4.8.4.1 (not yet released)
+- issue #14794 Not responding to click, frozen interface, plugin Text_Plain_Sql error
+- issue #14786 Table level Operations functions missing
+- issue #14791 PHP warning, db_export.php#L91 urldecode()
+
 4.8.4 (2018-12-11)
 - issue #14452 Remove hash param in edit query URL
 - issue #14295 Issue in Changing theme
diff --git a/db_export.php b/db_export.php
index 756b46f540..4205d501ce 100644
--- a/db_export.php
+++ b/db_export.php
@@ -88,15 +88,6 @@ if (!empty($_POST['selected_tbl']) && empty($table_select)) {
     $table_select = $_POST['selected_tbl'];
 }
 
-// Check if the selected tables are defined in $_POST
-// (from clicking Back button on export.php)
-foreach (['table_select', 'table_structure', 'table_data'] as $one_key) {
-    if (isset($_POST[$one_key])) {
-        $_POST[$one_key] = urldecode($_POST[$one_key]);
-        $_POST[$one_key] = explode(",", $_POST[$one_key]);
-    }
-}
-
 foreach ($tables as $each_table) {
     if (isset($_POST['table_select']) && is_array($_POST['table_select'])) {
         $is_checked = $export->getCheckedClause(
diff --git a/libraries/classes/Language.php b/libraries/classes/Language.php
index dc659cd279..273e84e8f2 100644
--- a/libraries/classes/Language.php
+++ b/libraries/classes/Language.php
@@ -153,7 +153,7 @@ class Language
     }
 
     /**
-     * Checks whether langauge is RTL
+     * Checks whether language is RTL
      *
      * @return bool
      */
diff --git a/libraries/classes/Plugins/Transformations/Output/Text_Plain_Sql.php b/libraries/classes/Plugins/Transformations/Output/Text_Plain_Sql.php
index f0425a2713..a46dd0266a 100644
--- a/libraries/classes/Plugins/Transformations/Output/Text_Plain_Sql.php
+++ b/libraries/classes/Plugins/Transformations/Output/Text_Plain_Sql.php
@@ -34,7 +34,7 @@ class Text_Plain_Sql extends SQLTransformationsPlugin
             $scripts->addFile('vendor/codemirror/lib/codemirror.js');
             $scripts->addFile('vendor/codemirror/mode/sql/sql.js');
             $scripts->addFile('vendor/codemirror/addon/runmode/runmode.js');
-            $scripts->addFile('function.js');
+            $scripts->addFile('functions.js');
         }
     }
 
diff --git a/libraries/classes/StorageEngine.php b/libraries/classes/StorageEngine.php
index e270920124..b5812d0a41 100644
--- a/libraries/classes/StorageEngine.php
+++ b/libraries/classes/StorageEngine.php
@@ -192,7 +192,7 @@ class StorageEngine
      */
     public static function getEngine($engine)
     {
-        switch (strtolower($engine)) {
+        switch (mb_strtolower($engine)) {
             case 'bdb':
                 return new Bdb($engine);
             case 'berkeleydb':