You are working on the sooperset/mcp-atlassian repository. The source code is checked out at /testbed at…

You are working on the sooperset/mcp-atlassian repository. The source code is checked out at /testbed at…: a task in SWE-Lego-RL-2699 (Harbor dataset). After the add custom fields method is called, the required fixVersions field is missing from the fields dictionary, causing the issue creation to…

The task

After the `_add_custom_fields` method is called, the required `fixVersions` field is missing from the fields dictionary, causing the issue creation to fail with "Fix versions is required" error.

Part of Lego-X/Lego-RL-2699.