git-debrebase: convert-from-*: leave debrebase-last refs

To hint to everyone that this is now a gdr branch.  This will make
dgit push use gdr make-patches, for example.

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

1 files changed, 3 insertions, 1 deletions

diff --git a/git-debrebase b/git-debrebase
index af19583..9d0bda0 100755
--- a/git-debrebase
+++ b/git-debrebase
@@ -2421,12 +2421,14 @@ sub begin_convert_from () {
     snag 'already-converted',
 	"ahead of debrebase-last, this is already managed by git-debrebase!"
 	if $gdrlast_obj && is_fast_fwd $gdrlast_obj, $head;
-    return ($head, undef);
+    return ($head, { LastRef => $gdrlast, LastObj => $gdrlast_obj });
 }
 
 sub complete_convert_from ($$$$) {
     my ($old_head, $new_head, $gi, $mrest) = @_;
     ffq_check $new_head;
+    record_gdrlast $gi->{LastRef}, $new_head, $gi->{LastObj}
+	if $gi->{LastRef};
     snags_maybe_bail();
     update_head_checkout $old_head, $new_head, $mrest;
 }