1 files changed, 4 insertions, 0 deletions
diff --git a/src/9p_io.zig b/src/9p_io.zig
index 7b0976bc..02b9efb5 100644
--- a/src/9p_io.zig
+++ b/src/9p_io.zig
@@ -258,6 +258,10 @@ pub const Listener = struct {
         // file written. A change carries no payload, so the reply is still
         // whole after the wait.
         l.kick();
+        // A refusal answers at once: its text may be in the core's one
+        // buffer for it, which a request run while this one waited would
+        // write over.
+        if (reply.status == .err) return conn.reply(&reply, "");
         const restoring = core.restore_req != null;
         if (core.effects_len != 0) pardes.turn.awaitSettled(epoch);
         // Once a wait returns `core` may be gone: a Restore meanwhile put a