src/vs/workbench/services/userDataSync/browser/userDataSyncWorkbenchService.ts/UserDataSyncPreview/updateConflicts
class UserDataSyncPreview:	private updateConflicts(conflicts: [SyncResource, IResourcePreview[]][]): void {
		const newConflicts = this.toUserDataSyncResourceGroups(conflicts);
		if (!equals(newConflicts, this._conflicts, (a, b) => isEqual(a.local, b.local))) {
			this._conflicts = newConflicts;
			this._onDidChangeConflicts.fire(this.conflicts);
		}
	}