Does not handle the getChildProjectUrlInheritAppendPath model property

[ppkarwasz]

The Maven Flatten Plugin does not handle the Model#getChildProjectUrlInheritAppendPath from the original POM and the property is always removed.

Since similar properties in the <scm> element are silently copied, whenever the element is copied, I believe that getChildProjectUrlInheritAppendPath should also always be copied.

[jam01]

Just ran into this general issue, however I'd suggest SCM drops the attributes instead.

Given my use of the flattened oss pom to give maven central a clean "consumption only" pom, the extra attributes are unnecessary.

In general, to flatten the pom should mean to remove them as well.

[ppkarwasz]

I guess both behaviors should be supported:

• if you are flattening a parent POM, these attributes should stay,
• if you are flattening a JAR artifact, these attributes are no longer necessary and can be dropped.