Merge branch 'github-pr17' into 'master'

fix: Utf8_truncate crashes on empty strings due to off-by-one-error

See merge request grommunio/grommunio-sync!101

Author: grammmike

lib/utils/utils.php

@@ -335,6 +335,11 @@ public static function GetTruncSize($truncation) {
 	 * @return string truncated string
 	 */
 	public static function Utf8_truncate($string, $length, $htmlsafe = false) {
+		// skip empty strings
+		if (empty($string)) {
+			return "";
+		}
+
 		// make sure length is always an integer
 		$length = (int) $length;