Merge branch 'fix-username-value' into 'master'

Feat fix username value to REMOTE_USER

See merge request rc/self-reg-form!57

app/__init__.py

@@ -47,9 +47,7 @@ def create_app(config_name):
     def get_authorized_user():
 
         user = {
-            "username": re.search(
-                r"([^!]+?)(@uab\.edu)?$", request.headers.get("Persistent-Id")
-            ).group(1),
+            "username": request.headers.get("REMOTE_USER"), 
             "fullname": (
                 f"{request.headers.get('Givenname')}"
                 f" {request.headers.get('Sn')}"