Fixing regression in BaseValidatingLineEdit

Task-number: 7238
Task-number: 7239

Change-Id: Ia0c5d13be2bd2e0decf0644882b0eb80054609bf
Reviewed-by: Alessandro Portale <alessandro.portale@nokia.com>

src/libs/utils/basevalidatinglineedit.cpp

@@ -168,7 +168,9 @@ void BaseValidatingLineEdit::slotChanged(const QString &t)
         }
     }
     bool block = blockSignals(true);
-    setText(fixInputString(t));
+    const QString fixedString = fixInputString(t);
+    if (t != fixedString)
+        setText(fixedString);
     blockSignals(block);
 }