$ git clone -n https://src.fedoraproject.org/rpms/disruptor.git /var/lib/mock/f41-build-1232723-22865/root/chroot_tmpdir/scmroot/disruptor
Cloning into '/var/lib/mock/f41-build-1232723-22865/root/chroot_tmpdir/scmroot/disruptor'...
$ git fetch origin 481d2a9445a58cae618e7b26aac70d9eb2542405:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/disruptor
 * [new ref]         481d2a9445a58cae618e7b26aac70d9eb2542405 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 481d2a9 Extract smoke tests out of test plan