Allow viewing diff before revision is written (#5399)

shared/i18n/locales/en_US/translation.json

@@ -127,6 +127,8 @@
   "Draft": "Draft",
   "Template": "Template",
   "New doc": "New doc",
+  "You updated": "You updated",
+  "{{ userName }} updated": "{{ userName }} updated",
   "You deleted": "You deleted",
   "{{ userName }} deleted": "{{ userName }} deleted",
   "You archived": "You archived",
@@ -137,8 +139,6 @@
   "{{ userName }} published": "{{ userName }} published",
   "You saved": "You saved",
   "{{ userName }} saved": "{{ userName }} saved",
-  "You updated": "You updated",
-  "{{ userName }} updated": "{{ userName }} updated",
   "Never viewed": "Never viewed",
   "Viewed": "Viewed",
   "in": "in",
@@ -164,8 +164,8 @@
   "our engineers have been notified": "our engineers have been notified",
   "Report a Bug": "Report a Bug",
   "Show Detail": "Show Detail",
+  "Current version": "Current version",
   "{{userName}} edited": "{{userName}} edited",
-  "Latest": "Latest",
   "{{userName}} archived": "{{userName}} archived",
   "{{userName}} restored": "{{userName}} restored",
   "{{userName}} deleted": "{{userName}} deleted",

shared/utils/RevisionHelper.ts

@@ -0,0 +1,11 @@
+export class RevisionHelper {
+  /**
+   * Get a static id for the latest revision of a document.
+   *
+   * @param documentId The document to generate an ID for.
+   * @returns The ID of the latest revision of the document.
+   */
+  static latestId(documentId?: string) {
+    return documentId ? `latest-${documentId}` : "";
+  }
+}