Maybe don't destroy the signature if we're going to try to validate again.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3815 ed5197a5-7fde-0310-b194-c3ffbd925b24

src/ssb.c

@@ -548,8 +548,15 @@ static bool _tf_ssb_verify_and_strip_signature_internal(JSContext* context, JSVa
 	JS_FreeCString(context, sigstr);
 	JS_FreeCString(context, str);
 	JS_FreeValue(context, sigval);
-	JS_FreeValue(context, signature);
 	JS_FreeValue(context, authorval);
+	if (verified)
+	{
+		JS_FreeValue(context, signature);
+	}
+	else
+	{
+		JS_SetPropertyStr(context, val, "signature", signature);
+	}
 	return verified;
 }