The Release column in the plan view shows only one release

Issue Summary

The Release column in the plan view shows only one release when the issue might have multiple fix versions. The field is prepared to render and work in only one selection.

Steps to Reproduce

1. In Advanced Roadmaps create a plan and add some issues to it
2. Add two fix versions to the issue in Jira 
3. At the plan, reload the information (calculate) and set a different Fix Version
4. Commit the change
5. On Jira, the information was replaced by the new value

Expected Results

All fix versions are shown in the plan in the Release column

The Plan should prompt to select an option to add a new value

Actual Results

Only one fix version is shown

The Plan overwrites the entire field and does not give an option to have multiple values on Fix Version (Release) field

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available