Skip adding (ignored) duplicate rules which were already added

src/Composer/DependencyResolver/Solver.php

@@ -277,8 +277,6 @@ class Solver
     {
         $updates = $this->policy->findUpdatePackages($this->pool, $this->installedMap, $package);
 
-        $this->addRulesForPackage($package);
-
         foreach ($updates as $update) {
             $this->addRulesForPackage($update);
         }
@@ -517,13 +515,9 @@ class Solver
 
         foreach ($this->installedMap as $package) {
             $this->addRulesForPackage($package);
-        }
-
-        foreach ($this->installedMap as $package) {
             $this->addRulesForUpdatePackages($package);
         }
 
-
         foreach ($this->jobs as $job) {
             foreach ($job['packages'] as $package) {
                 switch ($job['cmd']) {