Clear the delta base cache during fast-import checkpoint
Otherwise we may reuse the same memory address for a totally different "struct packed_git", and a previously cached object from the prior occupant might be returned when trying to unpack an object from the new pack. Found-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano

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3d20c636af
1
cache.h
1
cache.h
@ -739,6 +739,7 @@ extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t
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extern void close_pack_windows(struct packed_git *);
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extern void unuse_pack(struct pack_window **);
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extern void free_pack_by_name(const char *);
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extern void clear_delta_base_cache(void);
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extern struct packed_git *add_packed_git(const char *, int, int);
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extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
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extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
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