branchcache: add more test for the logic around obsolescence and branch heads While working on branch-cache-v3, we noticed some ambiguity in the filtered+obsolete hash. However this was only caught by a rebase test by chance. It seems important to explicitly tests these cases.

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import sys

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for line in sys.stdin:

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    if line.lower() in ("message-id: \n", "in-reply-to: \n"):

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        line = line[:-2]

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    print(line, end="")