diff --git a/src/Composer/DependencyResolver/Rule.php b/src/Composer/DependencyResolver/Rule.php
index 4370d38c6..a7248f65a 100644
--- a/src/Composer/DependencyResolver/Rule.php
+++ b/src/Composer/DependencyResolver/Rule.php
@@ -20,7 +20,6 @@ class Rule
     const RULE_INTERNAL_ALLOW_UPDATE = 1;
     const RULE_JOB_INSTALL = 2;
     const RULE_JOB_REMOVE = 3;
-    const RULE_JOB_LOCK = 4;
     const RULE_PACKAGE_CONFLICT = 6;
     const RULE_PACKAGE_REQUIRES = 7;
     const RULE_PACKAGE_OBSOLETES = 8;
@@ -196,9 +195,6 @@ class Rule
             case self::RULE_JOB_REMOVE:
                 return "Remove command rule ($ruleText)";
 
-            case self::RULE_JOB_LOCK:
-                return "Lock command rule ($ruleText)";
-
             case self::RULE_PACKAGE_CONFLICT:
                 $package1 = $this->literals[0]->getPackage();
                 $package2 = $this->literals[1]->getPackage();
diff --git a/src/Composer/DependencyResolver/Solver.php b/src/Composer/DependencyResolver/Solver.php
index 6cd3c55a3..a447479e9 100644
--- a/src/Composer/DependencyResolver/Solver.php
+++ b/src/Composer/DependencyResolver/Solver.php
@@ -481,91 +481,71 @@ class Solver
         }
     }
 
-    public function solve(Request $request)
+    protected function addRulesForJobs()
     {
-        $this->jobs = $request->getJobs();
-
-        $this->setupInstalledMap();
-
-        if (version_compare(PHP_VERSION, '5.3.4', '>=')) {
-            $this->decisionMap = new \SplFixedArray($this->pool->getMaxId() + 1);
-        } else {
-            $this->decisionMap = array_fill(0, $this->pool->getMaxId() + 1, 0);
-        }
-
         foreach ($this->jobs as $job) {
-            foreach ($job['packages'] as $package) {
-                switch ($job['cmd']) {
-                    case 'update':
+            switch ($job['cmd']) {
+                case 'update':
+                    foreach ($job['packages'] as $package) {
                         if (isset($this->installedMap[$package->getId()])) {
                             $this->updateMap[$package->getId()] = true;
                         }
-                        break;
-                }
-            }
+                    }
+                break;
 
-            switch ($job['cmd']) {
                 case 'update-all':
                     foreach ($this->installedMap as $package) {
                         $this->updateMap[$package->getId()] = true;
                     }
                 break;
-            }
-        }
-
-        foreach ($this->installedMap as $package) {
-            $this->addRulesForPackage($package);
-            $this->addRulesForUpdatePackages($package);
-        }
-
-        foreach ($this->jobs as $job) {
-            foreach ($job['packages'] as $package) {
-                switch ($job['cmd']) {
-                    case 'install':
-                        $this->installCandidateMap[$package->getId()] = true;
-                        $this->addRulesForPackage($package);
-                    break;
-                }
-            }
-        }
-
-        foreach ($this->jobs as $job) {
-            switch ($job['cmd']) {
                 case 'install':
                     if (empty($job['packages'])) {
                         $problem = new Problem();
                         $problem->addJobRule($job);
                         $this->problems[] = $problem;
                     } else {
+                        foreach ($job['packages'] as $package) {
+                            if (!isset($this->installedMap[$package->getId()])) {
+                                $this->addRulesForPackage($package);
+                            }
+                        }
+
                         $rule = $this->createInstallOneOfRule($job['packages'], Rule::RULE_JOB_INSTALL, $job['packageName']);
                         $this->addRule(RuleSet::TYPE_JOB, $rule);
                         $this->ruleToJob[$rule->getId()] = $job;
                     }
-                    break;
+                break;
                 case 'remove':
                     // remove all packages with this name including uninstalled
                     // ones to make sure none of them are picked as replacements
-
-                    // todo: cleandeps
                     foreach ($job['packages'] as $package) {
                         $rule = $this->createRemoveRule($package, Rule::RULE_JOB_REMOVE);
                         $this->addRule(RuleSet::TYPE_JOB, $rule);
                         $this->ruleToJob[$rule->getId()] = $job;
                     }
-                    break;
-                case 'lock':
-                    foreach ($job['packages'] as $package) {
-                        if (isset($this->installedMap[$package->getId()])) {
-                            $rule = $this->createInstallRule($package, Rule::RULE_JOB_LOCK);
-                        } else {
-                            $rule = $this->createRemoveRule($package, Rule::RULE_JOB_LOCK);
-                        }
-                        $this->addRule(RuleSet::TYPE_JOB, $rule);
-                        $this->ruleToJob[$rule->getId()] = $job;
-                    }
                 break;
             }
         }
+    }
+
+    public function solve(Request $request)
+    {
+        $this->jobs = $request->getJobs();
+
+        $this->setupInstalledMap();
+
+        if (version_compare(PHP_VERSION, '5.3.4', '>=')) {
+            $this->decisionMap = new \SplFixedArray($this->pool->getMaxId() + 1);
+        } else {
+            $this->decisionMap = array_fill(0, $this->pool->getMaxId() + 1, 0);
+        }
+
+        foreach ($this->installedMap as $package) {
+            $this->addRulesForPackage($package);
+            $this->addRulesForUpdatePackages($package);
+        }
+
+        $this->addRulesForJobs();
 
         foreach ($this->rules as $rule) {
             $this->addWatchesToRule($rule);