$ git clone -n https://src.fedoraproject.org/rpms/ant.git /var/lib/mock/f40-build-2195062-51512/root/chroot_tmpdir/scmroot/ant
Cloning into '/var/lib/mock/f40-build-2195062-51512/root/chroot_tmpdir/scmroot/ant'...
$ git fetch origin 3908eb8854bf273df494533bd89b900f9afdd931:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ant
 * [new ref]         3908eb8854bf273df494533bd89b900f9afdd931 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3908eb8 Update javapackages test plan to f40