Mise en place de l'ancienne regex pour la validation de la référence des réponses.

src/main/java/com/unantes/orientactive/converter/bean/Choice.java

@@ -30,7 +30,7 @@ public class Choice {
 
     public void validate() {
         this.value = this.value.trim();
-        ValidationUtils.validateReference(this.value);
+        ValidationUtils.validateReferenceAnswer(this.value);
     }
 
     public String getLabel() {

src/main/java/com/unantes/orientactive/validation/ValidationUtils.java

@@ -8,6 +8,7 @@ import com.unantes.orientactive.web.rest.errors.InvalidReferenceException;
 public class ValidationUtils {
 
     public static Pattern PATTERN_REFERENCE = Pattern.compile("^[a-zA-Z]+[a-zA-Z0-9_]*$");
+    public static Pattern PATTERN_REFERENCE_ANSWERS = Pattern.compile("^[a-zA-Z0-9_]*$");
     public static String RESERVED_SEPARATOR = "__";
 
     public static void validateReference(final String reference) {
@@ -16,4 +17,11 @@ public class ValidationUtils {
             throw new InvalidReferenceException();
         }
     }
+
+    public static void validateReferenceAnswer(final String reference) {
+        Matcher matcher = PATTERN_REFERENCE_ANSWERS.matcher(reference);
+        if (!matcher.matches() || reference.contains(RESERVED_SEPARATOR)) {
+            throw new InvalidReferenceException();
+        }
+    }
 }