SQL default encoding: utf8mb4

Core/Documents/Install.class.php

@@ -317,7 +317,7 @@ namespace Documents\Install {
       $password = $this->getParameter("password");
       $database = $this->getParameter("database");
       $type = $this->getParameter("type");
-      $encoding = $this->getParameter("encoding") ?? "UTF8";
+      $encoding = $this->getParameter("encoding") ?? "utf8mb4";
       $success = true;
 
       $missingInputs = [];
@@ -745,7 +745,7 @@ namespace Documents\Install {
             ]],
             [
               "title" => "Encoding", "name" => "encoding", "type" => "text", "required" => false,
-              "value" => "UTF8"
+              "value" => "utf8mb4"
             ],
           ]
         ],

Core/Driver/SQL/MySQL.class.php

@@ -67,7 +67,7 @@ class MySQL extends SQL {
         return false;
       }
 
-      mysqli_set_charset($this->connection, $this->connectionData->getProperty('encoding', 'UTF8'));
+      mysqli_set_charset($this->connection, $this->connectionData->getProperty('encoding', 'utf8mb4'));
       return true;
     } catch (\Exception $ex) {
       $this->lastError = $this->logger->severe("Failed to connect to MySQL: " . mysqli_connect_error());