Rails - Feb 2012 - Upgrading from 3.2.0 to 3.2.1: Wrong Number of Arguments

Simple spec passes in 3.2.0:

it "destroys an album" do
  3.times { Factory(:album, photo_library: @photo_library) }
  visit photo_library_path(@photo_library)
  find("h3").click_link ''Delete''
  find("#notice").should have_content("Album deleted
successfully")
  Album.count.should eq 2
end

But fails in 3.2.1 with:

1) Albums destroys an album
     Failure/Error: login_admin
     ArgumentError:
       wrong number of arguments (0 for 1)
     # ./app/controllers/sessions_controller.rb:8:in `create''
     # (eval):2:in `click_button''
     # ./spec/requests/albums_spec.rb:7:in `block (2 levels) in <top
(required)>''

Line 8 in sessions_controller is:

user = User.find_by_email(params[:email])


What''s going on here?  Here''s the diff in the Gemfile.lock
after making
the upgrade:

-    actionmailer (3.2.0)
-      actionpack (= 3.2.0)
+    actionmailer (3.2.1)
+      actionpack (= 3.2.1)
-    actionpack (3.2.0)
-      activemodel (= 3.2.0)
-      activesupport (= 3.2.0)
+    actionpack (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
-      journey (~> 1.0.0)
+      journey (~> 1.0.1)
-    activemodel (3.2.0)
-      activesupport (= 3.2.0)
+    activemodel (3.2.1)
+      activesupport (= 3.2.1)
-    activerecord (3.2.0)
-      activemodel (= 3.2.0)
-      activesupport (= 3.2.0)
+    activerecord (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
-    activeresource (3.2.0)
-      activemodel (= 3.2.0)
-      activesupport (= 3.2.0)
-    activesupport (3.2.0)
+    activeresource (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
+    activesupport (3.2.1)

-    rails (3.2.0)
-      actionmailer (= 3.2.0)
-      actionpack (= 3.2.0)
-      activerecord (= 3.2.0)
-      activeresource (= 3.2.0)
-      activesupport (= 3.2.0)
+    rails (3.2.1)
+      actionmailer (= 3.2.1)
+      actionpack (= 3.2.1)
+      activerecord (= 3.2.1)
+      activeresource (= 3.2.1)
+      activesupport (= 3.2.1)
-      railties (= 3.2.0)
-    railties (3.2.0)
-      actionpack (= 3.2.0)
-      activesupport (= 3.2.0)
+      railties (= 3.2.1)
+    railties (3.2.1)
+      actionpack (= 3.2.1)
+      activesupport (= 3.2.1)
-  rails (= 3.2.0)
+  rails (= 3.2.1)

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