X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=dgit;h=7ca97c57f018f5b59df7ca92aa6868f8fa8ee503;hp=9fcd1fcc40508cc34a5c51956e69ec5b44312cdb;hb=50048b4c1c41e1471cdc7054bed02ff30418ea44;hpb=a17cad7ce9f5d5a89c77cd9179d4fb33076e493f

diff --git a/dgit b/dgit
index 9fcd1fcc..7ca97c57 100755
--- a/dgit
+++ b/dgit
@@ -3917,6 +3917,22 @@ END
     ensuredir ".git/logs/refs/dgit-intern";
     my $makelogfh = new IO::File ".git/logs/refs/$splitbraincache", '>>'
       or die $!;
+
+    my $oldcache = git_get_ref "refs/$splitbraincache";
+    if ($oldcache eq $dgitview) {
+	my $tree = cmdoutput qw(git rev-parse), "$dgitview:";
+	# git update-ref doesn't always update, in this case.  *sigh*
+	my $dummy = make_commit_text <<END;
+tree $tree
+parent $dgitview
+author Dgit <dgit\@example.com> 1000000000 +0000
+committer Dgit <dgit\@example.com> 1000000000 +0000
+
+Dummy commit - do not use
+END
+	runcmd @git, qw(update-ref -m), "dgit $our_version - dummy",
+	    "refs/$splitbraincache", $dummy;
+    }
     runcmd @git, qw(update-ref -m), $cachekey, "refs/$splitbraincache",
 	$dgitview;