From 0ec0485a15ff16b166dae82fd3e9af107ef484f3 Mon Sep 17 00:00:00 2001
From: Philipp Otto <philipp.4096@gmail.com>
Date: Tue, 31 Jan 2023 18:15:23 +0100
Subject: [PATCH 1/2] fix that getRawDataCuboid could request data from
 non-existent mag by default

---
 frontend/javascripts/oxalis/api/api_latest.ts             | 8 ++++++--
 frontend/javascripts/oxalis/model/sagas/proofread_saga.ts | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/frontend/javascripts/oxalis/api/api_latest.ts b/frontend/javascripts/oxalis/api/api_latest.ts
index e38de96daf6..a6770554772 100644
--- a/frontend/javascripts/oxalis/api/api_latest.ts
+++ b/frontend/javascripts/oxalis/api/api_latest.ts
@@ -1549,10 +1549,12 @@ class DataApi {
     topLeft: Vector3,
     bottomRight: Vector3,
     token: string,
+    resolution?: Vector3,
   ): string {
     const { dataset } = Store.getState();
-    const resolutionInfo = getDatasetResolutionInfo(dataset);
-    const resolution = resolutionInfo.getLowestResolution();
+    const resolutionInfo = getResolutionInfo(getLayerByName(dataset, layerName).resolutions);
+    resolution = resolution || resolutionInfo.getLowestResolution();
+
     const magString = resolution.join("-");
     return (
       `${dataset.dataStore.url}/data/datasets/${dataset.owningOrganization}/${dataset.name}/layers/${layerName}/data?mag=${magString}&` +
@@ -1591,6 +1593,7 @@ class DataApi {
     layerName: string,
     topLeft: Vector3,
     bottomRight: Vector3,
+    resolution?: Vector3,
   ): Promise<ArrayBuffer> {
     return doWithToken((token) => {
       const downloadUrl = this._getDownloadUrlForRawDataCuboid(
@@ -1598,6 +1601,7 @@ class DataApi {
         topLeft,
         bottomRight,
         token,
+        resolution,
       );
       return Request.receiveArraybuffer(downloadUrl);
     });
diff --git a/frontend/javascripts/oxalis/model/sagas/proofread_saga.ts b/frontend/javascripts/oxalis/model/sagas/proofread_saga.ts
index 9afc2535cc4..e424b52b86e 100644
--- a/frontend/javascripts/oxalis/model/sagas/proofread_saga.ts
+++ b/frontend/javascripts/oxalis/model/sagas/proofread_saga.ts
@@ -692,6 +692,7 @@ function* createGetUnmappedDataValueFn(
       fallbackLayerName,
       nodePosition,
       V3.add(nodePosition, mag),
+      mag,
     );
 
     return Number(new TypedArrayClass(buffer)[0]);

From f96169aa7f7f5283e3b99cbfa7534f1ed7b9762b Mon Sep 17 00:00:00 2001
From: Philipp Otto <philipp.4096@gmail.com>
Date: Tue, 31 Jan 2023 18:16:28 +0100
Subject: [PATCH 2/2] update changelog

---
 CHANGELOG.unreleased.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.unreleased.md b/CHANGELOG.unreleased.md
index dce694921da..7c82ff10e7e 100644
--- a/CHANGELOG.unreleased.md
+++ b/CHANGELOG.unreleased.md
@@ -40,6 +40,7 @@ For upgrade instructions, please check the [migration guide](MIGRATIONS.released
 - Fixed a bug where the dataset folders view would not list public datasets if the requesting user could not also access the dataset for other reasons, like being admin. [#6759](https://github.com/scalableminds/webknossos/pull/6759)
 - Fixed a bug where zarr-streamed datasets would produce (very rare) rendering errors. [#6782](https://github.com/scalableminds/webknossos/pull/6782)
 - Fixed a bug where publicly shared annotations were not viewable by users without an account. [#6784](https://github.com/scalableminds/webknossos/pull/6784)
+- Fixed proofreading when mag 1 doesn't exist for segmentation layer [#6795](https://github.com/scalableminds/webknossos/pull/6795)
 
 ### Removed