From 9c84f4d79fe778ec8f5874a2468ff72fb3d3dda1 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Wed, 11 Mar 2020 17:02:25 +0100
Subject: [PATCH] Make sure InstalledRepository itself can be added too but
 requires allowing installed repos in reposet

---
 src/Composer/Repository/RepositorySet.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Repository/RepositorySet.php b/src/Composer/Repository/RepositorySet.php
index 98bc36bc6..5c7ac1bb8 100644
--- a/src/Composer/Repository/RepositorySet.php
+++ b/src/Composer/Repository/RepositorySet.php
@@ -22,6 +22,7 @@ use Composer\Repository\CompositeRepository;
 use Composer\Repository\PlatformRepository;
 use Composer\Repository\LockArrayRepository;
 use Composer\Repository\InstalledRepositoryInterface;
+use Composer\Repository\InstalledRepository;
 use Composer\Semver\Constraint\ConstraintInterface;
 use Composer\Package\Version\StabilityFilter;
 
@@ -190,7 +191,7 @@ class RepositorySet
         $poolBuilder = new PoolBuilder($this->acceptableStabilities, $this->stabilityFlags, $this->rootAliases, $this->rootReferences, $eventDispatcher);
 
         foreach ($this->repositories as $repo) {
-            if ($repo instanceof InstalledRepositoryInterface && !$this->allowInstalledRepositories) {
+            if (($repo instanceof InstalledRepositoryInterface || $repo instanceof InstalledRepository) && !$this->allowInstalledRepositories) {
                 throw new \LogicException('The pool can not accept packages from an installed repository');
             }
         }