Merge branch '2.2' into main

CHANGELOG.md

@@ -1,3 +1,13 @@
+### [2.2.7] 2022-02-25
+
+  * Allow installation together with composer/xdebug-handler ^3 (#10528)
+  * Fixed support for packages with no licenses in `licenses` command output (#10537)
+  * Fixed handling of `allow-plugins: false` which kept warning (#10530)
+  * Fixed enum parsing in classmap generation when the enum keyword is not lowercased (#10521)
+  * Fixed author parsing in `init` command requiring an email whereas the schema allows a name only (#10538)
+  * Fixed issues in `require` command when requiring packages which do not exist (but are provided by something else you require) (#10541)
+  * Performance improvement in pool optimization step (#10546)
+
 ### [2.2.6] 2022-02-04
 
   * BC Break: due to an oversight, the `COMPOSER_BIN_DIR` env var for binaries added in Composer 2.2.2 had to be renamed to `COMPOSER_RUNTIME_BIN_DIR` (#10512)
@@ -1384,6 +1394,7 @@
 
   * Initial release
 
+[2.2.7]: https://github.com/composer/composer/compare/2.2.6...2.2.7
 [2.2.6]: https://github.com/composer/composer/compare/2.2.5...2.2.6
 [2.2.5]: https://github.com/composer/composer/compare/2.2.4...2.2.5
 [2.2.4]: https://github.com/composer/composer/compare/2.2.3...2.2.4

src/Composer/DependencyResolver/PoolOptimizer.php

@@ -339,6 +339,11 @@ private function markPackageForRemoval(int $id): void
      */
     private function keepPackage(BasePackage $package, array $identicalDefinitionsPerPackage, array $packageIdenticalDefinitionLookup): void
     {
+        // Already marked to keep
+        if (!isset($this->packagesToRemove[$package->id])) {
+            return;
+        }
+
         unset($this->packagesToRemove[$package->id]);
 
         if ($package instanceof AliasPackage) {