Process Instances: Changing views renames process variables columns

When defined process variables match some of the already existing columns in Process Instances perspective, these process variables will, if available as configurable columns, contain a prefix Var_, which will allow differentiation between the existing columns and these custom columns.

However, when the columns are enabled and if a user navigates from and back to Process Instances perspective or switches between saved filters, the prefix Var_ gets removed from the columns names.
If the process variables columns are disabled and the view was changed back and forth again, the columns names are restored.
Merely refreshing the view, doesn't cause the change in the names.