Fix/reload report

[zhenyu-ms]

Bug / Requirement Description

Report appeared broken after reloading test code with newly added testcases.

Solution description

Instead of grafting, copying certain information from the previous report to the new report here.

Checklist:

• [x] Test
• [ ] Example (both test_plan.py and .rst)
• [ ] Documentation (API)
• [x] News fragment present for release notes
• [x] MS info leakage check
• [ ] For new driver: driver index page
• [ ] For new assertion: ui/pdf/std renderers, documentation
• [ ] For new cmdline arg: documentation