fix override deduplication bug (#2142)

jspm · Oct 31, 2016 · fd2990c · fd2990c
1 parent db0834c
commit fd2990c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/package.js b/lib/package.js
@@ -806,15 +806,15 @@ function derivePackageConfig(pkg, packageConfig, override) {
     // and clone properties that do
     for (var p in override) {
       var stringified = JSON.stringify(override[p]);
-      if (JSON.stringify(packageConfig.jspm[p]) !== stringified && JSON.stringify(packageConfig[p]) !== stringified)
+      if (p in packageConfig.jspm ? JSON.stringify(packageConfig.jspm[p]) !== stringified : JSON.stringify(packageConfig[p]) !== stringified)
         packageConfig.jspm[p] = JSON.parse(stringified);
       else
         delete override[p];
     }
   }
 
   // then apply the override
-  if (override || packageConfig.jspm)
+  if (packageConfig.jspm)
     extend(packageConfig, packageConfig.jspm);
 
   var endpoint = registry.load(packageConfig.registry || pkg.registry);