src/vs/workbench/contrib/userDataSync/browser/userDataSyncMergesView.ts/AcceptChangesContribution/shouldShowButton
class AcceptChangesContribution:	private shouldShowButton(editor: ICodeEditor): boolean {
		const model = editor.getModel();
		if (!model) {
			return false; // we need a model
		}

		const userDataSyncResource = this.getUserDataSyncResource(model.uri);
		if (!userDataSyncResource) {
			return false;
		}

		if (!this.configurationService.getValue('diffEditor.renderSideBySide')) {
			return isEqual(userDataSyncResource.merged, model.uri);
		}

		return true;
	}