git-debrebase: merge: Add a comment about rewriting

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/git-debrebase b/git-debrebase
index 499cda2..5de9c14 100755
--- a/git-debrebase
+++ b/git-debrebase
@@ -1217,6 +1217,9 @@ sub walk ($;$$$) {
 	    }
 
 	    if ($ok && $might_be_in_bw) {
+		# We could rewrite this to contaion the metadata
+		# declaring it to be MergedBreakwaters, but
+		# unnecessarily rewriting a merge seems unhelpful.
 		$prline->(" VanillaMerge MergedBreakwaters");
 		$last_anchor = $best_anchor;
 		$build_start->('MergedBreakwaters', $cur);