Enhanced Studio-Server Support for Markup in Structs

Studio-Server may not have been able to deliver some Markup stored in Structs to Studio-Client, recorded in Studio-Server Log as org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR .

Studio-Server now can handle such Markup, which may be, for example, a result of importing pretty-printed serverexport data.

To work around this issue in previous versions, it is recommended not to use pretty-print option for serverexport , if these exported data are meant to be imported to CMS again.

(CMS-21505)