title: Base localization + Storyboard + .strings -> no localization
body: <p>Xcode 4.6, target iOS 6, SDK iOS 6.1</p>
  
  <p>I started with a storyboard that worked well for my app; the strings it contains are in English. I wanted to add a French localization. I did this:</p>
  
  <ul>
  <li>Added a base localization, which transferred
  MainStoryboard.storyboard from en.lproj to Base.lproj.</li>
  <li>Added a French localization, which cloned InfoPlist.strings (English)
  and MainStoryboard.storyboard (Base) into fr.lproj.</li>
  <li>Changed a couple of strings (titles of segments in a
  UISegmentedControl) in the French MainStoryboard.storyboard.</li>
  <li>In the Simulator, set the language to French.</li>
  <li>Ran the app from Xcode.</li>
  </ul>
  
  <p><strong>Result</strong>: This worked; my changed strings showed up in the running application.</p>
  
  <p>But I want to be all fancy. I want to do the French localization using a .strings file. (It's not just a matter of being fancy; the French localization will be turned over to nontechnical translators, who can't be expected to master Interface Builder.) So:</p>
  
  <ul>
  <li>Selected the base MainStoryboard.storyboard in the Xcode Project
  navigator.</li>
  <li>In the File inspector, under Localization, changed the French
  localization from "Interface Builder Cocoa Touch Storyboard" to
  "Localizable Strings."</li>
  <li>Accepted Xcode's warning that the French storyboard will be discarded
  in favor of a .strings file, which appears in the Assistant editor.</li>
  <li>Made the same two edits; there's no question of their being the wrong
  strings, because they're all commented as
  IBUISegmentedControl...segmentTitles; and the label text doesn't
  appear anywhere else in the .strings file.</li>
  <li>Deleted the existing (working) copy of the app from the simulator.</li>
  <li>Ran the app.</li>
  </ul>
  
  <p><strong>Result</strong>: The view uses the base (originally English) localization, instead of loading the French strings.</p>
  
  <p>Converting to Autolayout had no effect. Deleting the app from the simulator had no effect. Deleting the Derived Products directory had no effect. A Stack Overflow suggested using ibtool to generate the .strings file instead of Xcode; the two generated files are identical.</p>
  
  <p>This isn't satisfactory. As I said, I can't turn a .storyboard file over to a nontechnical translator. How can I get iOS to accept the storyboard localizations from a .strings file?</p>