$ git clone -n https://src.fedoraproject.org/rpms/spdlog.git /var/lib/mock/f41-build-808160-145697/root/chroot_tmpdir/scmroot/spdlog
Cloning into '/var/lib/mock/f41-build-808160-145697/root/chroot_tmpdir/scmroot/spdlog'...
$ git fetch origin 6aa54bc8ed0526802974a7b5bbe99445ca308841:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spdlog
 * [new ref]         6aa54bc8ed0526802974a7b5bbe99445ca308841 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6aa54bc Updated to version 1.14.1.