$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-ctbllib.git /var/lib/mock/f39-build-1569109-37697/root/chroot_tmpdir/scmroot/gap-pkg-ctbllib
Cloning into '/var/lib/mock/f39-build-1569109-37697/root/chroot_tmpdir/scmroot/gap-pkg-ctbllib'...
$ git fetch origin f44de1eae11ad61f33bd4ccc2417217efe2a1a3e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-ctbllib
 * [new ref]         f44de1eae11ad61f33bd4ccc2417217efe2a1a3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f44de1e Version 1.3.6