Exercise: Fix aiken content imported to exercise from openAi.

main/exercise/export/aiken/aiken_import.inc.php

@@ -425,8 +425,12 @@ function setExerciseInfoFromAikenText($aikenText, &$exerciseInfo)
     if ('ASCII' === $detect) {
         $data = explode("\n", $aikenText);
     } else {
-        $text = str_ireplace(["\x0D", "\r\n"], "\n", $aikenText); // Removes ^M char from win files.
-        $data = explode("\n\n", $text);
+        if (false !== stripos($aikenText, "\x0D") || false !== stripos($aikenText, "\r\n")) {
+            $text = str_ireplace(["\x0D", "\r\n"], "\n", $aikenText); // Removes ^M char from win files.
+            $data = explode("\n\n", $text);
+        } else {
+            $data = explode("\n", $aikenText);
+        }
     }
 
     $questionIndex = 0;

plugin/ai_helper/tool/learnpath.php

@@ -131,7 +131,7 @@ switch ($apiName) {
                                 $request['quiz_name'] = get_lang('Exercise').': '.$item['title'];
                                 $request['nro_questions'] = $nQ;
                                 $request['course_id'] = api_get_course_int_id($courseCode);
-                                $request['aiken_format'] = $resultQuizText;
+                                $request['aiken_format'] = trim($resultQuizText);
                                 $exerciseId = aikenImportExercise(null, $request);
                                 if (!empty($exerciseId)) {
                                     $order++;