Real fix for T44127: Python does not guarantee to free all objects on exit...

All kudos to Campbell for the head-up and patch!

source/blender/python/intern/bpy_interface.c

@@ -61,6 +61,8 @@
 #include "bpy_traceback.h"
 #include "bpy_intern_string.h"
 
+#include "bpy_app_translations.h"
+
 #include "DNA_text_types.h"
 
 #include "BKE_appdir.h"
@@ -358,6 +360,9 @@ void BPY_python_end(void)
 
 	bpy_intern_string_exit();
 
+	/* bpy.app modules that need cleanup */
+	BPY_app_translations_end();
+
 #ifndef WITH_PYTHON_MODULE
 	BPY_atexit_unregister(); /* without this we get recursive calls to WM_exit */