Fix: versioning broke links when loading tree

versioning for fCurve, Armature broke everything because
they were clearing inputs and outputs and then not relinking
the outputs
there was no reason to clear the outputs.

versioning.py

@@ -357,14 +357,14 @@ def schema_enable_custom_interface_types(*args, **kwargs):
 # since this is basically the same operation, just do it all together
 def update_fcurve_and_armature_node_to_multi_socket(*args, **kwargs):
     node = kwargs['node']
-    prRed("BEPIS")
     live_updates = node.id_data.do_live_update
     node.id_data.do_live_update = False
     # First we have to get the socket maps and re-init the sockets
     from .utilities import get_socket_maps, do_relink
     sockets_in, _sockets_out = get_socket_maps(node,)
-    node.inputs.clear(); node.outputs.clear()
-    node.init_sockets(node.socket_templates)
+    node.inputs.clear()
+    input_templates = [st for st in node.socket_templates if st.is_input == True]
+    node.init_sockets(input_templates)
     convert_keys = {'UtilityFCurve' : [ 'Keyframe', ],
                     'LinkArmature'  : [ 'Target', 'Weight', ], }
     try:
@@ -383,12 +383,6 @@ def update_fcurve_and_armature_node_to_multi_socket(*args, **kwargs):
                         new_sockets_in[convert_key+'s'] = sockets_in[socket_name]
                     prWhite (new_sockets_in[convert_key+'s'])
             do_relink(node, node.inputs[convert_key+'s'], new_sockets_in, in_out="INPUT",)
-            delete_me = []
-            for socket in node.inputs:
-                if convert_key+'.' in socket.name:
-                    delete_me.append(socket)
-            for socket in delete_me:
-                node.inputs.remove(socket)
     finally:
         node.id_data.do_live_update = live_updates