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Before this change, t7063.17 fails. The actual action though happens at t7063.16 where the entry "two" is added back to index after being removed in the .13. Here we expect a directory invalidate at .16 and none at .17 where untracked cache is refreshed. But things do not go as expected when GIT_TEST_SPLIT_INDEX is set. The different behavior that happens at .16 when split index is used: the entry "two", when deleted at .13, is simply marked "deleted". When .16 executes, the entry resurfaces from the version in base index. This happens in merge_base_index() where add_index_entry() is called to add "two" back from the base index. This is where the bug comes from. The add_index_entry() is called with ADD_CACHE_KEEP_CACHE_TREE flag because this version of "two" is not new, it does not break either cache-tree or untracked cache. The code should check this flag and not invalidate untracked cache. This causes a second invalidation violates test expectation. The fix is obvious. Noticed-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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