fix https://github.com/microsoft/vscode-copilot/issues/11101 (#235414)

src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingModifiedFileEntry.ts

@@ -420,7 +420,7 @@ export class ChatEditingModifiedFileEntry extends Disposable implements IModifie
 			if (this._allEditsAreFromUs) {
 				// save the file after discarding so that the dirty indicator goes away
 				// and so that an intermediate saved state gets reverted
-				await this.docFileEditorModel.save({ reason: SaveReason.EXPLICIT });
+				await this.docFileEditorModel.save({ reason: SaveReason.EXPLICIT, skipSaveParticipants: true });
 			}
 			await this.collapse(transaction);
 		}