fix: Add the encrypted entry to entries to ensure the entry is pinned.

src/oplog/log.js

@@ -302,7 +302,9 @@ const Log = async (identity, { logId, logHeads, access, entryStorage, headsStora
       await index.addVerified(hashesToAdd.values())
       /* 5. Remove heads which new entries are connect to */
       await index.removeHeads(connectedHeads.values())
-      /* 6. Add the new entry to heads (=union with current heads) */
+      /* 6. Add new entry to entries (for pinning) */
+      await index.pinEntry(entry)
+      /* 7. Add the new entry to heads (=union with current heads) */
       await index.addHead(entry)
 
       return true

src/oplog/oplog-index.js

@@ -58,8 +58,15 @@ const OplogIndex = async ({ logHeads, entryStorage, headsStorage, indexStorage,
     return hash
   }
 
+  const pinEntry = async (entry) => {
+    /* 6. Add new entry to entries (for pinning) */
+    const { hash, bytes } = await Entry.encode(entry, encryptEntryFn, encryptPayloadFn)
+
+    await _entries.put(hash, bytes)
+  }
+
   const addHead = async (entry) => {
-    /* 6. Add the new entry to heads (=union with current heads) */
+    /* 7. Add the new entry to heads (=union with current heads) */
     await _heads.add(entry)
     return entry.hash
   }
@@ -97,6 +104,7 @@ const OplogIndex = async ({ logHeads, entryStorage, headsStorage, indexStorage,
     heads,
     setHead,
     addHead,
+    pinEntry,
     removeHeads,
     addVerified,
     storage: _entries,