<?xml version="1.0" encoding="UTF-8"?> <setup:EclipseIniTask xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:setup="http://www.eclipse.org/oomph/setup/1.0" option="-Doomph.redirection.egit=" value="https://git.eclipse.org/c/egit/egit.git/plain/tools/oomph/EGit.setup->${git.clone.egit.location|uri}/tools/oomph/EGit.setup" vm="true"/>
At that point you can edit the version in the clone and test it locally. E.g., test that the Eclipse Ini task produces the correct -D you added manually.