[geary: 1/3] Fix "Sender name" couldn't be changed without editing the address

[Michael Gratton <mjog src gnome org>]

commit cb6611ea7058d3acfc0f67f281055f2a598a90c6
Author: Kristian Klausen <kristian klausen dk>
Date:   Wed Feb 20 14:20:37 2019 +0100

    Fix "Sender name" couldn't be changed without editing the address
    
    Fix #226

 src/client/accounts/accounts-editor-edit-pane.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/client/accounts/accounts-editor-edit-pane.vala 
b/src/client/accounts/accounts-editor-edit-pane.vala
index 7136e52a..c64a8362 100644
--- a/src/client/accounts/accounts-editor-edit-pane.vala
+++ b/src/client/accounts/accounts-editor-edit-pane.vala
@@ -532,7 +532,7 @@ internal class Accounts.MailboxEditorPopover : EditorPopover {
     }
 
     private void on_activate() {
-        if (this.address != "" && this.address_validator.is_valid) {
+        if (this.address_validator.state == Components.Validator.Validity.INDETERMINATE || 
this.address_validator.is_valid) {
             activated();
         }
     }