Fix delete-session not deleting all cached state

commands.go

@@ -458,6 +458,7 @@ func (handler *CommandHandler) CommandDeleteSession(ce *CommandEvent) {
 		ce.Reply("Nothing to purge: no session information stored and no active connection.")
 		return
 	}
+	ce.User.removeFromJIDMap()
 	ce.User.SetSession(nil)
 	if ce.User.Conn != nil {
 		_, _ = ce.User.Conn.Disconnect()

user.go

@@ -107,7 +107,10 @@ func (user *User) addToJIDMap() {
 
 func (user *User) removeFromJIDMap() {
 	user.bridge.usersLock.Lock()
-	delete(user.bridge.usersByJID, user.JID)
+	jidUser, ok := user.bridge.usersByJID[user.JID]
+	if ok && user == jidUser {
+		delete(user.bridge.usersByJID, user.JID)
+	}
 	user.bridge.usersLock.Unlock()
 	user.bridge.Metrics.TrackLoginState(user.JID, false)
 }