Add horizon neutron ports fix (#286)

Signed-off-by: ricolin <rlin@vexxhost.com>
Co-authored-by: ricolin <rlin@vexxhost.com>

Author: vexxhost-bot

patches/openstack/horizon/0001-fix-api-Avoid-RecursionError-when-deepcopy-Port-apid.patch

@@ -0,0 +1,41 @@
+From c2d951d7d557e07b725a7400f9bdb36bc229d262 Mon Sep 17 00:00:00 2001
+From: Dong Ma <winterma.dong@gmail.com>
+Date: Wed, 4 Feb 2026 13:42:35 +0800
+Subject: [PATCH] fix(api): Avoid RecursionError when deepcopy Port apidict
+
+When the apidict passed to Port.__init__ is an openstacksdk Resource
+object, calling copy.deepcopy() on it can trigger a RecursionError.
+This happens because openstacksdk CloudRegion.__getattr__ method
+can cause infinite recursion during deepcopy operations.
+
+This fix converts the apidict to a plain dict using to_dict() before
+deepcopy if the method is available, avoiding the recursion issue.
+
+Change-Id: Ia0de61ae6461c06158b285923d1abab373b4b792
+Signed-off-by: Dong Ma <winterma.dong@gmail.com>
+---
+ openstack_dashboard/api/neutron.py | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/openstack_dashboard/api/neutron.py b/openstack_dashboard/api/neutron.py
+index bce0c20d3..423f3ac18 100644
+--- a/openstack_dashboard/api/neutron.py
++++ b/openstack_dashboard/api/neutron.py
+@@ -203,7 +203,13 @@ class Port(NeutronAPIDictWrapper):
+                 ON_STATE if apidict['mac_learning_enabled'] else OFF_STATE
+         pairs = apidict.get('allowed_address_pairs')
+         if pairs:
+-            apidict = copy.deepcopy(apidict)
++            # Convert to dict first if possible to avoid RecursionError
++            # when deepcopy encounters openstacksdk objects with custom
++            # __getattr__ methods. to_dict() already returns a new dict.
++            if hasattr(apidict, 'to_dict'):
++                apidict = apidict.to_dict()
++            else:
++                apidict = copy.deepcopy(apidict)
+             wrapped_pairs = [PortAllowedAddressPair(pair) for pair in pairs]
+             apidict['allowed_address_pairs'] = wrapped_pairs
+         super().__init__(apidict)
+-- 
+2.25.1
+