$ git clone -n https://src.fedoraproject.org/rpms/harfbuzz.git /var/lib/mock/f40-build-1712286-24613/root/chroot_tmpdir/scmroot/harfbuzz
Cloning into '/var/lib/mock/f40-build-1712286-24613/root/chroot_tmpdir/scmroot/harfbuzz'...
$ git fetch origin a99cb3282b2f13370566e662261a82609a6097d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/harfbuzz
 * [new ref]         a99cb3282b2f13370566e662261a82609a6097d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a99cb32 Update to 8.5.0 version