also show redaction reason for redaction local echo

src/domain/session/room/timeline/tiles/RedactedTile.js

@@ -24,7 +24,11 @@ export class RedactedTile extends BaseMessageTile {
     get description() {
         const {redactionReason} = this._entry;
         if (this.isRedacting) {
+            if (redactionReason) {
+                return this.i18n`This message is being deleted (${redactionReason})…`;
+            } else {
                 return this.i18n`This message is being deleted…`;
+            }
         } else {
             if (redactionReason) {
                 return this.i18n`This message has been deleted (${redactionReason}).`;

src/matrix/room/timeline/entries/BaseEventEntry.js

@@ -31,6 +31,13 @@ export class BaseEventEntry extends BaseEntry {
         return this.isRedacting;
     }
 
+    get redactionReason() {
+        if (this._pendingRedactions) {
+            return this._pendingRedactions[0].content?.reason;
+        }
+        return null;
+    }
+
     /**
         aggregates local relation.
         @return [string] returns the name of the field that has changed, if any

src/matrix/room/timeline/entries/EventEntry.js

@@ -122,6 +122,6 @@ export class EventEntry extends BaseEventEntry {
         if (redactionEvent) {
             return redactionEvent.content?.reason;
         }
-        return null;
+        return super.redactionReason;
     }
 }