$ git clone -n https://git.cclinux.org/stage/rpms/ecj.git /mnt/compose/mock/dist-circle8-build-112848-71821/root/chroot_tmpdir/scmroot/ecj
Cloning into '/mnt/compose/mock/dist-circle8-build-112848-71821/root/chroot_tmpdir/scmroot/ecj'...
$ git fetch origin f5319b68028578169a053492ae183f88cb5ba387:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/ecj
 * [new ref]         f5319b68028578169a053492ae183f88cb5ba387 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5319b6 import ecj-4.20-11.el8