Sheet tab names invisible until rename on nextcloud

[perryBunn]

nextcloud/server#61533

Using Euro-Office, upgraded to Nextcloud 34 with Euro-Office from Collabora.
Sheet/tab names in .xlsx files are invisible and wide until rename is clicked or activated through double-click on a sheet tab.

Bug reappears if:
Document is closed and reopened.
A new sheet is added while document is open.

YouTube video showcasing bug where @arqtik double-click to rename and add new sheets

Steps to reproduce

1. Create or open existing .xlsx document.
2. See that sheet tab names are invisible.
3. Double-click or right-click and rename tab to make all tab names reappear.
4. Rename all tab names to make them be not wide.
5. Close and reopen document to see that all tab names are invisible and wide again.