Dont ignore --title when using an empty session

Fixes #3055

docs/changelog.rst

@@ -27,6 +27,9 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 - Allow adding MIME definitions to kitty by placing a ``mime.types`` file in
   the kitty config directory (:iss:`3056`)
 
+- Dont ignore :option:`--title` when using a session file that defines no
+  windows (:iss:`3055`)
+
 
 0.19.1 [2020-10-06]
 -------------------

kitty/session.py

@@ -115,7 +115,7 @@ def finalize_session(ans: Session) -> Session:
                 w: Optional[Watchers] = None
                 if t.watchers.has_watchers:
                     w = t.watchers.copy()
-                t.windows.append(SpecialWindow(cmd=resolved_shell(opts), watchers=w))
+                t.windows.append(SpecialWindow(cmd=resolved_shell(opts), watchers=w, override_title=default_title))
         return ans
 
     ans = Session(default_title)