MucTab: Ensure bookmark exists before removing it in /close

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

CHANGELOG

@@ -8,6 +8,7 @@ https://dev.louiz.org/projects/poezio/roadmap
 
 - Reorder: Prevent GapTabs from being serialized and ignore when serialized as
   they're recreated automatically.
+- Ensure bookmark is present before removing it in /close.
 
 # Bug fixes
 

poezio/tabs/muctab.py

@@ -1530,6 +1530,8 @@ class MucTab(ChatTab):
         """
         self.leave_room(msg)
         if config.get('synchronise_open_rooms'):
+            if self.jid not in self.core.bookmarks:
+                return
             self.core.bookmarks[self.jid].autojoin = False
             self.core.bookmarks.save(self.core.xmpp)
         self.core.close_tab(self)