Hello,
I find an issue during conversion between word and onlyoffice.
When a document contains a QuickPart object Title whose content is assigned to a bookmark, then after opening and saving in onlyoffice, there is an error opening the document in word.
For example the file [Word Before OnlyOffice.docx](https://nextcloud.intra.gresi21.fr/s/gN2RBtnMb2Qjrit) is correct, but the same file just opened in onlyoffice [Word After OnlyOffice.docx](https://nextcloud.intra.gresi21.fr/s/nogJqzgWCjKM6n7) an error occurd on word opening
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Document Server version: OnlyOffice 7.1.2 on Nextcloud 20.0.8
Intallation of the Document Server (docker)
OS: Debian