From d0733ecf55f76c4700eb116439c4fd635936f956 Mon Sep 17 00:00:00 2001
From: Michał Górny <mgorny@gentoo.org>
Date: Wed, 1 Nov 2017 15:36:31 +0100
Subject: recursiveloader: Optimize duplicate Manifest updates out

---
 gemato/recursiveloader.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gemato/recursiveloader.py b/gemato/recursiveloader.py
index fd926c5..65dd424 100644
--- a/gemato/recursiveloader.py
+++ b/gemato/recursiveloader.py
@@ -859,6 +859,11 @@ class ManifestRecursiveLoader(object):
                     if fe.tag == 'MANIFEST':
                         manifest_stack.append((fpath, relpath,
                             self.loaded_manifests[fpath]))
+                        # do not update the Manifest entry if
+                        # the relevant Manifest is going to be updated
+                        # anyway
+                        if relpath in self.updated_manifests:
+                            continue
                 else:
                     # skip top-level Manifest, we obviously can't have
                     # an entry for it
-- 
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