As shown in the attached screenshots
The Issue linking is currently order using Alphanumeric. So if you would like to order the list you will need to change the name. The name is not shown to the user so there is not an issue with changing it, example below. Atlassian is working on a solution for this: https://jira.atlassian.com/browse/JRASERVER-16281
To order issue links do the following:
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