Fix: Ensure accurate typing state and simplify entry key check

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

tui.py

@@ -520,8 +520,9 @@ class NametagScreen(Screen):
     def handle_input(self, c):
         button = self.get_button(c)
         if self.nametag_member:
-            self.is_typing = True
-            if c == KEY_ESCAPE: self.nametag_member = ''
+            if c == KEY_ESCAPE:
+                self.nametag_member = ''
+                self.is_typing = False
             elif c == KEY_ENTER:
                 if len(self.nametag_member) > 1:
                     self.stdscr.addstr(15, 4, 'Printing...')
@@ -531,8 +532,9 @@ class NametagScreen(Screen):
                     self.state.current_screen = 'home'
             else: self.nametag_member = self.handle_text_input(c, self.nametag_member)
         elif self.nametag_guest:
-            self.is_typing = True
-            if c == KEY_ESCAPE: self.nametag_guest = ''
+            if c == KEY_ESCAPE:
+                self.nametag_guest = ''
+                self.is_typing = False
             elif c == KEY_ENTER:
                 if len(self.nametag_guest) > 1:
                     self.stdscr.addstr(15, 4, 'Printing...')
@@ -554,7 +556,7 @@ class NametagScreen(Screen):
 
     def is_entry_key(self, c):
         button = self.get_button(c)
-        return not (self.nametag_member or self.nametag_guest) and button in ['m', 'g']
+        return not self.is_typing and button in ['m', 'g']
 
 class LabelScreen(Screen):
     # This screen is complex, breaking it down into sub-states