fix: do not store CFFI handles twice

Signed-off-by: Matteo Cafasso <[email protected]>

Author: noxdafox

clips/values.py

@@ -102,7 +102,7 @@ def clips_external_address(env: ffi.CData, value: type) -> ffi.CData:
 
     # Hold reference to CData handle
     user_functions = common.environment_data(env, 'user_functions')
-    user_functions.external_addresses[handle] = (handle, value)
+    user_functions.external_addresses[handle] = value
 
     return lib.CreateCExternalAddress(env, handle)