Cant create a proper BOM when using ${revision}

When I have a multimodule project where one of the modules is a BOM, meant for other projects. (Think spring boot starter bom) I see no way of using ${revision} to make the resulting BOM have the version of the project to be resolved in that bom. I cannot use ${project.version} in the BOM for this, as these wont be resolved upon install/deploy. 

Apart from the BOM part Ive set up my project according to https://maven.apache.org/maven-ci-friendly.html

Also made a ticket here https://github.com/mojohaus/flatten-maven-plugin/issues/104