$ git clone -n https://src.fedoraproject.org/rpms/sleef.git /var/lib/mock/f38-build-side-42-init-devel-1311897-30687/root/chroot_tmpdir/scmroot/sleef
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1311897-30687/root/chroot_tmpdir/scmroot/sleef'...
$ git fetch origin df6422a8b68f6cd85adb76424f12ef590e140622:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sleef
 * [new ref]         df6422a8b68f6cd85adb76424f12ef590e140622 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df6422a Filter gencoef CC-BY-4.0 sources before uploading