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

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

diff --git a/git-debrebase b/git-debrebase
index 3de0aa9f1c1f62c569634e832b861e0f0dba0fc1..1295360d8a6f85c0b73a7525c256ac512e495163 100755 (executable)
--- 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 $!;