Resource instance attributes and cluster properties are displayed in a form whose fields are defined in metadata. If there is an instance attribute or a cluster property in the CIB which is not defined by metadata then it is not displayed in gui at all.
In this situation, if a resource attribute or a cluster property gets renamed (i.e. deprecated and replaced by another attribute) in metadata, it gets lost in the gui. It is not even possible to display its value in order to copy it to the new attribute.
We plan to split cluster properties and instance attributes to tabs "basic", "advanced" and "expert". We should add another tab labeled "custom". This "custom" tab would display a simple key-value table to manage custom properties - basically the table which is now used for managing meta-attributes or utilization.
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.