$ git clone -n https://src.fedoraproject.org/rpms/maven-assembly-plugin.git /var/lib/mock/f40-build-2096849-50418/root/chroot_tmpdir/scmroot/maven-assembly-plugin
Cloning into '/var/lib/mock/f40-build-2096849-50418/root/chroot_tmpdir/scmroot/maven-assembly-plugin'...
$ git fetch origin 0155ec9b13e03bccb8aeb8921fed7f8b9d130ae1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-assembly-plugin
 * [new ref]         0155ec9b13e03bccb8aeb8921fed7f8b9d130ae1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0155ec9 Update javapackages test plan to f40