From b9b54f318a7f7892a9f6e2a4f4fcf2a276492b8c Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Sun, 1 Nov 2026 22:29:07 +0100
Subject: api: allow reading past versions

---
 src/document/store.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/document/store.rs')

diff --git a/src/document/store.rs b/src/document/store.rs
index c2c0622..c16767b 100644
--- a/src/document/store.rs
+++ b/src/document/store.rs
@@ -94,6 +94,9 @@ pub(crate) enum StoreError {
     /// An index past a list's end (`length` items).
     #[error("index {index} is past the list's end ({length} items)")]
     PastTheEnd { index: usize, length: usize },
+    /// A read at heads the document doesn't have (`at::At`).
+    #[error("this node doesn't have these heads (yet)")]
+    UnknownHeads,
     /// The node is rejoining a newer epoch: no writes until it is done
     /// (`Replica::writable`).
     #[error("the node is rejoining a newer epoch; writes are refused until it is done")]
-- 
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