$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-utils.git /var/lib/mock/f41-build-1034997-18652/root/chroot_tmpdir/scmroot/gap-pkg-utils
Cloning into '/var/lib/mock/f41-build-1034997-18652/root/chroot_tmpdir/scmroot/gap-pkg-utils'...
$ git fetch origin f1e441ce18f6112d8531922941cbeb7841458c8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-utils
 * [new ref]         f1e441ce18f6112d8531922941cbeb7841458c8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1e441c Version 0.86