What steps will reproduce the problem?
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1.  When this indent syntax is enabled, I am unable to
        manually indent any lines

What is the expected output? What do you see instead?
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 *  I should be able to manually adjust indenting as needed

What version of the product are you using? On what operating system?
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 *  Beta 3.0 Released (from vim.org) using Vim 7.3

Please provide any additional information below.
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 *  Disabled all other plugins and customizations and it still
         doesn't work as expected

 *  Log shows (for example)
        LOG: No, noncomment lines prior to: -- INSERT --