Thomas Rast [off-list ref] writes:
The directory hash (for fast checks if the index already has a
directory) was only used in ignore_case mode and so depended on that
flag.
Make it generally available on request.
Signed-off-by: Thomas Rast <redacted>
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I somehow had an impression that we were getting rid of these two
hashes and merging them into one, but I do not see any such change
between 'master..pu'. Perhaps I am confused with some other topic.