$ git clone -n https://src.fedoraproject.org/rpms/maven-invoker.git /var/lib/mock/f40-build-1777588-24803/root/chroot_tmpdir/scmroot/maven-invoker
Cloning into '/var/lib/mock/f40-build-1777588-24803/root/chroot_tmpdir/scmroot/maven-invoker'...
$ git fetch origin 2c6e754fde004ed625fad39f532f8ce276a92c3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-invoker
 * [new ref]         2c6e754fde004ed625fad39f532f8ce276a92c3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c6e754 Set maven javaVersion to 8, fix building with java 21.