tests: two-thirds of npm-defaults.js doesn't work

[kenany]

Changing the input configs of two of npm-defaults.js tests do not make the test fail:

diff --git a/test/npm-defaults.js b/test/npm-defaults.js
index 666e9a1..06a2221 100644
--- a/test/npm-defaults.js
+++ b/test/npm-defaults.js
@@ -55,7 +55,7 @@ test("npm configuration values pulled from dotted config", function (t) {
   var config = {
     yes : "yes",

-    "init.author.name"  : "npmbot",
+    "init.author.name"  : "kenan",
     "init.author.email" : "n@p.m",
     "init.author.url"   : "http://npm.im",

@@ -81,7 +81,7 @@ test("npm configuration values pulled from dashed config", function (t) {
   var config = {
     yes : "yes",

-    "init-author-name"  : "npmbot",
+    "init-author-name"  : "kenan",
     "init-author-email" : "n@p.m",
     "init-author-url"   : "http://npm.im",

AFAICT, this is because npm.load() caches a loaded boolean and as such only its first execution here determines the config used in all the tests in this file. The other npm.load()s change nothing, so it seems to me like these tests aren't actually testing what they should be testing.

I spent some time this morning trying to work around this but I'm at a lost now :(