From fc40fefa6f1cb351f13d696446ef6ffdb64f3235 Mon Sep 17 00:00:00 2001
From: Nils Adermann <naderman@naderman.de>
Date: Fri, 27 Mar 2020 23:13:21 +0100
Subject: [PATCH] Make sure nameConstraints is always set when loading a name

---
 src/Composer/DependencyResolver/PoolBuilder.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Composer/DependencyResolver/PoolBuilder.php b/src/Composer/DependencyResolver/PoolBuilder.php
index e715c26a5..4597ec494 100644
--- a/src/Composer/DependencyResolver/PoolBuilder.php
+++ b/src/Composer/DependencyResolver/PoolBuilder.php
@@ -274,6 +274,8 @@ class PoolBuilder
                     if ($request->getUpdateAllowTransitiveRootDependencies() || !$this->isRootRequire($request, $replace)) {
                         $this->unfixPackage($request, $replace);
                         $loadNames[$replace] = null;
+                        // TODO should we try to merge constraints here?
+                        $this->nameConstraints[$replace] = null;
                     } elseif (!$request->getUpdateAllowTransitiveRootDependencies() && $this->isRootRequire($request, $replace) && !isset($this->updateAllowWarned[$require]) && $this->io) {
                         $this->updateAllowWarned[$replace] = true;
                         $this->io->writeError('<warning>Dependency "'.$require.'" is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies to include root dependencies.</warning>');