[PATCH] pack-bitmap.c: typofix in `find_boundary_objects()`

In the boundary-based bitmap traversal, we use the given 'rev_info' structure to first do a commit-only walk in order to determine the boundary between interesting and uninteresting objects.

That walk only looks at commit objects, regardless of the state of revs->blob_objects, revs->tree_objects, and so on. In order to do this, we store the state of these variables in temporary fields before setting them back to zero, performing the traversal, and then setting them back.

But there is a typo here that dates back to b0afdce5da (pack-bitmap.c: use commit boundary during bitmap traversal, 2023-05-08), where we incorrectly store the value of the "tags" field as "revs->blob_objects".

This could lead to problems later on if, say, the caller wants tag objects but *not* blob objects. In the pre-image behavior, we'd set revs->tag_objects back to the old value of revs->blob_objects, thus emitting fewer objects than expected back to the caller.

Fix that by correctly assigning the value of 'revs->tag_objects' to the 'tmp_tags' field.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
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Noticed while I was looking for an example of this pattern somewhere in
the codebase and was surprised when I found this typo ;-).

 pack-bitmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)