Package validation fail
- Dominant language
- C#
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Description
### Describe the bug
When updating our `PackageValidationBaselineVersion` the build fails on package validation. However when running our build with `/p:ApiCompatGenerateSuppressionFile=true` to update the files as instructed, the only differece in the output is that the command deleted the comments we had on the xlm files:

You can see it in https://github.com/dotnet/msbuild/pull/10116
### Repro
- Download MSBuild repo
- Update the `PackageValidationBaselineVersion` to 17.10.4 (the new release version)
- Run `.\build.cmd -c Release -pack /p:ApiCompatGenerateSuppressionFile=true` from msbuild repo source.
- Check the differences in the xml files.
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