[BUG] Vision Client tags do not honour Read-Only setting

v7.9.10

I use client tags to define a set of colours, however I need to be able to fix these to a value. I could use an expression, but I’d like to use the read-only access config to stop these from being inadvertently changed (e.g. via a bi-directionional binding), however the read-only property on the tag doesn’t appear to do anything; changing the colour of a bi-directionally bound colour property will still change the bound read-only client tag’s value.