JIRA url not fully respected

Issue url is not fully used by maven-changes-plugin:2.8

have following issue url:

<issueManagement>
<system>JIRA</system>
<url>https://my.ch/prod/jira/?pid=10000</url>
</issueManagement>

with changes-plugin:2.7.1 works well:

[INFO] Generating "JIRA Report" report — maven-changes-plugin:2.7.1
[DEBUG] JIRA lives at: https://my.ch/prod/jira
[DEBUG] Login URL: https://my.ch/prod/jira/login.jsp?os_destination=/secure/&os_username=*****&os_password=*****
[DEBUG] Successfully logged in into JIRA.

BUT with changes-plugin:2.8, got error:

[INFO] Generating "JIRA Report" report — maven-changes-plugin:2.8
[DEBUG] JIRA lives at: https://my.ch
[DEBUG] Login URL: https://my.ch/login.jsp?os_destination=/secure/&os_username=*****&os_password=*****
[ERROR] Error trying to login into JIRA.
java.net.SocketException: Connection reset

Problem is, that the additional context /prod/jira/ gets lost.