Thanks for the information. So this is now solved
'Force read-only' option cleared after 'refresh calendar list'
For some calendars I set the ‘force read-only’ option to prevent accidental changes on my android phone.
Every time I select ‘refresh calendar list’ from the davx5 menu then all calendars have the read-only options cleared and I have to set them again manually. I would prefer the option to stick on a refresh.
Thanks, have added it to https://gitlab.com/bitfireAT/davx5-ose/wikis/Roadmap
@rfc2822 thank you very much!