I am extracting some old Jira data and have noticed some issues with a Resolution but an empty Resolution date and vice versa, some issues with a Resolution Date but an empty Resolution. I've tested scenarios move issues through transitions setting and unsetting Resolution and I find that if the Resolution is set, the Resolved date also gets set. So what are the scenarios where one of those fields can get set, without the other ?
There is one outstanding scenario which I need to test and I am wondering if it is a result of a Workflow change and therefore migrating issues to new states and I am wondering whether Resolution and Resolution Date in that case can get decoupled. Any ideas?