From bc76e32f5e40a25667c0555c6cc5bd35b2b31a0f Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 27 Sep 2020 00:12:54 +0100
Subject: [PATCH] Try fix broken attempt to avoid null updates

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 src/updates.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/updates.rs b/src/updates.rs
index 29bfa434..2d9ce6da 100644
--- a/src/updates.rs
+++ b/src/updates.rs
@@ -368,7 +368,8 @@ impl<'r> PrepareUpdatesBuffer<'r> {
 
 impl<'r> Drop for PrepareUpdatesBuffer<'r> {
   fn drop(&mut self) {
-    if let Some(gen) = self.gen {
+    if ! (self.us.is_empty() && self.gen.is_none()) {
+      let gen = self.gen();
       let update = PreparedUpdate {
         when: Instant::now(),
         gen,
-- 
2.30.2