git-debrebase: divergence checking: Do not mind if a ref we are checking does not exist

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

1 files changed, 1 insertions, 1 deletions

diff --git a/git-debrebase b/git-debrebase
index 3de0aa9..1295360 100755
--- a/git-debrebase
+++ b/git-debrebase
@@ -1018,7 +1018,7 @@ sub record_ffq_prev_deferred () {
 	}
 	return if $invert;
 	my $lrval = git_get_ref $lrref;
-	return unless defined $lrval;
+	return unless length $lrval;
 
 	if (is_fast_fwd $lrval, $currentval) {
 	    print "OK, you are ahead of $lrref\n" or die $!;