$ git clone -n https://src.fedoraproject.org/rpms/maven-wagon.git /var/lib/mock/f40-build-2087755-50162/root/chroot_tmpdir/scmroot/maven-wagon
Cloning into '/var/lib/mock/f40-build-2087755-50162/root/chroot_tmpdir/scmroot/maven-wagon'...
$ git fetch origin cd6ecd39c4c016452d93560fd0d412538d59d2b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-wagon
 * [new ref]         cd6ecd39c4c016452d93560fd0d412538d59d2b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd6ecd3 Update javapackages test plan to f40