Support renaming of project keys

Description

The current version of Backbone uses the issue keys to build up a relation between the issues of a project. It stores e.g. Issue PA-1 is mapped to PB-1.
When someone renames the project key in JIRA, this mapping information needs to be updated.

Workaround solution
We described a workaround solution in this help article.

Environment

None

Assignee

Unassigned

Reporter

Sync User [K15t]

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Priority

Major
Configure