升级到v4.9.1后显示上载文件中的umbracoBytes

最近将站点升级到v4.9.1后，它不再填充umbracoBytes，即umbracoExtension标签。

这是我的umbracoSettings.config

<imaging>

            <!-- what file extension that should cause umbraco to create thumbnails -->

            <imageFileTypes>jpeg,jpg,gif,bmp,png,tiff,tif</imageFileTypes>

            <!-- what attributes that are allowed in the editor on an img tag -->

            <allowedAttributes>alt,border,class,style,align,id,name,onclick,usemap</allowedAttributes>

            <!-- automatically updates dimension, filesize and extension attributes on upload -->

            <autoFillImageProperties>

                <uploadField alias="umbracoFile">

                    <widthFieldAlias>umbracoWidth</widthFieldAlias>

                    <heightFieldAlias>umbracoHeight</heightFieldAlias>

                    <lengthFieldAlias>umbracoBytes</lengthFieldAlias>

                    <extensionFieldAlias>umbracoExtension</extensionFieldAlias>

                </uploadField>

            </autoFillImageProperties>

        </imaging>

jpeg、jpg、gif、bmp、png、tiff、tif
alt、border、class、style、align、id、name、onclick、usemap
本影宽度
本影高度
本影字节
本影延伸