From 56495c9d13da069332db0743fb17fc3a18f79fb3 Mon Sep 17 00:00:00 2001
From: Bruno Windels <bruno@windels.cloud>
Date: Thu, 27 May 2021 09:10:10 +0200
Subject: [PATCH] fix gap failing to fill 2nd time + unit regression test

---
 .../session/room/timeline/tiles/GapTile.js    | 28 +++++++++++++++++++
 .../session/room/timeline/tiles/SimpleTile.js |  2 +-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/domain/session/room/timeline/tiles/GapTile.js b/src/domain/session/room/timeline/tiles/GapTile.js
index 1b05c1c8..dbf5cf63 100644
--- a/src/domain/session/room/timeline/tiles/GapTile.js
+++ b/src/domain/session/room/timeline/tiles/GapTile.js
@@ -72,3 +72,31 @@ export class GapTile extends SimpleTile {
         return null;
     }
 }
+
+import {FragmentBoundaryEntry} from "../../../../../matrix/room/timeline/entries/FragmentBoundaryEntry.js";
+export function tests() {
+    return {
+        "uses updated token to fill": async assert => {
+            let currentToken = 5;
+            const fragment = {
+                id: 0,
+                previousToken: currentToken,
+                roomId: "!abc"
+            };
+            const room = {
+                async fillGap(entry) {
+                    console.log(entry.token, currentToken);
+                    assert.equal(entry.token, currentToken);
+                    currentToken += 1;
+                    const newEntry = entry.withUpdatedFragment(Object.assign({}, fragment, {previousToken: currentToken}));
+                    tile.updateEntry(newEntry);
+                }
+            };
+            const tile = new GapTile({entry: new FragmentBoundaryEntry(fragment, true), room});
+            await tile.fill();
+            await tile.fill();
+            await tile.fill();
+            assert.equal(currentToken, 8);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/domain/session/room/timeline/tiles/SimpleTile.js b/src/domain/session/room/timeline/tiles/SimpleTile.js
index 29f9980b..07529b51 100644
--- a/src/domain/session/room/timeline/tiles/SimpleTile.js
+++ b/src/domain/session/room/timeline/tiles/SimpleTile.js
@@ -85,7 +85,7 @@ export class SimpleTile extends ViewModel {
     // update received for already included (falls within sort keys) entry
     updateEntry(entry, param) {
         const renderedAsRedacted = this.shape === "redacted";
-        if (entry.isRedacted !== renderedAsRedacted) {
+        if (!entry.isGap && entry.isRedacted !== renderedAsRedacted) {
             // recreate the tile if the entry becomes redacted
             return UpdateAction.Replace("shape");
         } else {