$ git clone -n https://src.fedoraproject.org/rpms/maven-compiler-plugin.git /var/lib/mock/f40-build-2087688-50160/root/chroot_tmpdir/scmroot/maven-compiler-plugin
Cloning into '/var/lib/mock/f40-build-2087688-50160/root/chroot_tmpdir/scmroot/maven-compiler-plugin'...
$ git fetch origin 779e1df08603f9a451938c245b98e9f77b5b1b3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-compiler-plugin
 * [new ref]         779e1df08603f9a451938c245b98e9f77b5b1b3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 779e1df Update javapackages test plan to f40