$ git clone -n https://src.fedoraproject.org/rpms/maven-doxia.git /var/lib/mock/f40-build-2393503-60531/root/chroot_tmpdir/scmroot/maven-doxia
Cloning into '/var/lib/mock/f40-build-2393503-60531/root/chroot_tmpdir/scmroot/maven-doxia'...
$ git fetch origin 0143e6e6c4577146173a0b4802cfbfa8f64f0582:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-doxia
 * [new ref]         0143e6e6c4577146173a0b4802cfbfa8f64f0582 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0143e6e Fix build with plexus-containers 2.2.0