roundup versioning not working properly on nested maven repositories

[tloubrieu-jpl]

🐛 Describe the bug

per https://github.com/NASA-PDS/pds4-information-model/runs/6067059849?check_suite_focus=true#step:5:209, this error occurs when the top-level POM version number is changed, but the lower level POM versions are not updated.

📜 To Reproduce

Steps to reproduce the behavior:

1. Fork / clone pds4-information-model repo into sandbox

2. git checkout -b release/14.0.1
   git push origin release/14.0.1

3. see error above

As a workaround, after deleting the original branch, I manually versioned the repo and it worked:

git checkout -b release/14.0.1
mvn versions:set -DnewVersion=14.0.1
git add pom.xml
git add */pom.xml
git commit -m "Prep for v14.0.1 release"
git push origin release/14.0.1

And it worked as expected. However, per this commit roundup only versioned the top-level POM when transitioning back to SNAPSHOT, so the unstable build is now failing.

Other info:

• Commit for manual versioning here
• Roundup's empty commit since the versioning was already done

🕵️ Expected behavior

Versions properly

📚 Version of Software Used

🩺 Test Data / Additional context

🏞Screenshots

🖥 System Info

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

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🦄 Related requirements

⚙️ Engineering Details

[nutjob4life]

@jordanpadams thanks for the incredibly thorough report. Tells me precisely what to fix.