$ git clone -n https://src.fedoraproject.org/rpms/procdump.git /var/lib/mock/f42-build-3408482-45145/root/chroot_tmpdir/scmroot/procdump
Cloning into '/var/lib/mock/f42-build-3408482-45145/root/chroot_tmpdir/scmroot/procdump'...
$ git fetch origin d395a65c1dc739d047df1f0533caf96b79b07e7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/procdump
 * [new ref]         d395a65c1dc739d047df1f0533caf96b79b07e7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d395a65 Merge branch 'f41' into rawhide