call left_click handler of statusicon in main loop with idle_add. fixes #3567

src/statusicon.py

@@ -22,6 +22,7 @@
 import sys
 import gtk
 import systray
+import gobject
 
 from common import gajim
 from common import helpers
@@ -59,7 +60,7 @@ class StatusIcon(systray.Systray):
 		self.unsubscribe_events()
 
 	def on_status_icon_left_clicked(self, widget):
-		self.on_left_click()
+		gobject.idle_add(self.on_left_click)
 
 	def set_img(self):
 		'''apart from image, we also update tooltip text here'''