[gnome-shell/uajain/adapt-user-avatar-part2] fixup! userWidget: Revamp username-based login flow

[Umang Jain <uajain src gnome org>]

commit e1a7d17a0d2109908f2e6f02acd22138f10d9f97
Author: Umang Jain <mailumangjain gmail com>
Date:   Thu Feb 6 09:46:48 2020 +0530

    fixup! userWidget: Revamp username-based login flow
    
    Fix a bug where sessionMenuButton was not visible in a username-based
    login; if a authPrompt had previously triggered.
    
    (User-list -> Select a user from list -> Cancel the prompt
    -> Click "Not Listed" -> sessionMenuButton was not displayed)

 js/gdm/loginDialog.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 409e8c5382..11eafb8f55 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -930,7 +930,10 @@ var LoginDialog = GObject.registerClass({
             });
         this._updateCancelButton();
 
-        this._sessionMenuButton.updateSensitivity(this._shouldShowSessionMenuButton());
+        const showSessionMenu = this._shouldShowSessionMenuButton();
+        this._sessionMenuButton.updateSensitivity(showSessionMenu);
+        this._sessionMenuButton.visible = showSessionMenu;
+
         this._authPrompt.updateSensitivity(true);
         this._showPrompt();
     }