···11+--- original
22++++ modified
33+@@ -560,7 +560,9 @@
44+ self.key_cache.cache = KeyCacheState::PendingBatch
55+ }
66+ } else {
77+- unreachable!("A batch was received while we didn't request one")
88++ // warn instead of crashing.
99++ // TODO: figure out the root cause...
1010++ warn!("A batch was received while we didn't request one")
1111+ }
1212+ }
1313+