diff --git a/packages/netlify-cms-core/src/actions/editorialWorkflow.js b/packages/netlify-cms-core/src/actions/editorialWorkflow.js
index 56223a01..86e76b42 100644
--- a/packages/netlify-cms-core/src/actions/editorialWorkflow.js
+++ b/packages/netlify-cms-core/src/actions/editorialWorkflow.js
@@ -6,7 +6,7 @@ import { currentBackend } from 'src/backend';
 import { getAsset } from 'Reducers';
 import { selectFields } from 'Reducers/collections';
 import { EDITORIAL_WORKFLOW } from 'Constants/publishModes';
-import { EditorialWorkflowError } from 'netlify-cms-lib-util';
+import { EDITORIAL_WORKFLOW_ERROR } from 'netlify-cms-lib-util';
 import { loadEntry } from './entries';
 import ValidationErrorTypes from 'Constants/validationErrorTypes';
 
@@ -238,7 +238,7 @@ export function loadUnpublishedEntry(collection, slug) {
       .unpublishedEntry(collection, slug)
       .then(entry => dispatch(unpublishedEntryLoaded(collection, entry)))
       .catch(error => {
-        if (error instanceof EditorialWorkflowError && error.notUnderEditorialWorkflow) {
+        if (error.name === EDITORIAL_WORKFLOW_ERROR && error.notUnderEditorialWorkflow) {
           dispatch(unpublishedEntryRedirected(collection, slug));
           dispatch(loadEntry(collection, slug));
         } else {
diff --git a/packages/netlify-cms-core/src/backend.js b/packages/netlify-cms-core/src/backend.js
index 16fb9353..e5228c49 100644
--- a/packages/netlify-cms-core/src/backend.js
+++ b/packages/netlify-cms-core/src/backend.js
@@ -449,7 +449,7 @@ class Backend {
     }
 
     const commitMessage = commitMessageFormatter('delete', config, { collection, slug, path });
-    return this.implementation.deleteFile(path, commitMessage);
+    return this.implementation.deleteFile(path, commitMessage, { collection, slug });
   }
 
   deleteMedia(config, path) {
diff --git a/packages/netlify-cms-lib-util/src/index.js b/packages/netlify-cms-lib-util/src/index.js
index 7a5efebc..3654ab76 100644
--- a/packages/netlify-cms-lib-util/src/index.js
+++ b/packages/netlify-cms-lib-util/src/index.js
@@ -1,6 +1,6 @@
 export APIError from './APIError';
 export Cursor, { CURSOR_COMPATIBILITY_SYMBOL } from './Cursor';
-export EditorialWorkflowError from './EditorialWorkflowError';
+export EditorialWorkflowError, { EDITORIAL_WORKFLOW_ERROR } from './EditorialWorkflowError';
 export localForage from './localForage';
 export { resolvePath, basename, fileExtensionWithSeparator, fileExtension } from './path';
 export { filterPromises, resolvePromiseProperties, then } from './promise';