$ git clone -n https://src.fedoraproject.org/rpms/sat4j.git /var/lib/mock/f41-build-1041584-18982/root/chroot_tmpdir/scmroot/sat4j
Cloning into '/var/lib/mock/f41-build-1041584-18982/root/chroot_tmpdir/scmroot/sat4j'...
$ git fetch origin 2081293e67e2275a7c0bfff6b1c345c417a15399:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sat4j
 * [new ref]         2081293e67e2275a7c0bfff6b1c345c417a15399 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2081293 Eliminate use of obsolete %patchN syntax (#2283636)