I am having problems with the CFBundleShortVersionString not updating from 1.0 and this stops us from updating the app as it always fails validation.

I have found this:

http://developer.appcelerator.com/question/120234/app-icon-and-version-no-is-missing-at-xcode-organizer

and this:

http://developer.appcelerator.com/question/126340/cfbundleshortversionstring-is-always-10

and have tried updating the builder.py to:

    shortversion = project_info_plist['CFBundleVersion'].split('.')
    archive_info = {
        'ApplicationProperties' : {
            'ApplicationPath' : appbundle,
            'CFBundleIdentifier' : project_info_plist['CFBundleIdentifier'],

            'CFBundleShortVersionString' : '%s.%s' % (shortversion[0], shortversion[1]),
            'IconPaths' : [os.path.join(appbundle,icon), os.path.join(appbundle,icon)]
        },
        'ArchiveVersion' : float(1),
        'CreationDate' : datetime.datetime.utcnow(),
        'Name' : name,
        'SchemeName' : name
    }

however in the info.plist the value still remains 1.0:

<key>CFBundleVersion</key>
    <string>2.1323054662</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>

I am using Titanium Studio, build: 1.0.2.201107130739
Iphone SDK 1.8.0.v20111109103101
Xcode version 4.2 (recently upgraded)

Any assistance would be very much appreciated