Feature milestone build source isn't matching with the release binary

Issue Summary

Recently received a feedback that sources for an EAP milestone 8.0.0-struts-m020 aren't matching the binary. 
See: https://community.developer.atlassian.com/t/psa-confluence-moves-to-struts-in-8-0-eap/60376/12?u=ggautam

This is reproducible on Data Center: (yes) / (no)

Steps to Reproduce

1. Look at https://my.atlassian.com/download/source/confluence/zip/52586?nonGovtUser=true?nonGovtUser=true

Actual Results

Source isn't matching with binary.

Expected Results

Source matches

Workaround

Use decompiled binary for source of truth.