log: clarify comment about reflog cycles
When we're walking reflogs, we leave the commit buffer and parents in place. A comment explains that this is due to "cycles". But the interesting thing is the unsaid implication: that the cycles (plus our clearing of the SEEN flag) will cause us to show commits multiple times. Let's spell it out. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -372,7 +372,10 @@ static int cmd_log_walk(struct rev_info *rev)
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*/
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rev->max_count++;
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if (!rev->reflog_info) {
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/* we allow cycles in reflog ancestry */
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/*
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* We may show a given commit multiple times when
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* walking the reflogs.
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*/
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free_commit_buffer(commit);
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}
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free_commit_list(commit->parents);
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