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When showing merges in git-log, the same commit is shown once for each parent. Combined with "--graph" this results in graph_show_commit() being called once for each parent without graph_update() being called. Currently graph_show_commit() does not print anything on subsequent invocations for the same commit (this was changed by commit 656197ad - "graph.c: infinite loop in git whatchanged --graph -m" from the previous behaviour of looping infinitely). Change this so that if the graph code believes it has already shown the commit it prints a single padding line. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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