tainted-objects protocol: Reintroduce time, handle optionality

According to the poldb schema, gitobjtype is optional, so make it
optional in the protocol too.

Reintroduce time, as we're about to need it for calling the common
message construction.

Clarify what optionality means and implement it properly.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/dgit b/dgit
index 4bb0325..c51f75e 100755
--- a/dgit
+++ b/dgit
@@ -4575,7 +4575,7 @@ sub tainted_objects_precheck ($$) {
 	my $objid = $row->{gitobjid};
 	my ($gtype, $dummy) = git_cat_file $objid, undef;
 	next if $gtype eq 'missing';
-	if ($gtype ne $row->{gitobjtype}) {
+	if ($row->{gitobjtype} and $gtype ne $row->{gitobjtype}) {
 	    print STDERR f_ <<'END', $objid, $gtype, $row->{gitobjtype};
 warning: server says object %s type %s is tainted, but here it has type %s
 END