$ git clone -n https://src.fedoraproject.org/rpms/kbibtex.git /var/lib/mock/f40-build-780048-130662/root/chroot_tmpdir/scmroot/kbibtex
Cloning into '/var/lib/mock/f40-build-780048-130662/root/chroot_tmpdir/scmroot/kbibtex'...
$ git fetch origin 287fdb76a64d7f0dbe642e26f0a6642ae674a57a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kbibtex
 * [new ref]         287fdb76a64d7f0dbe642e26f0a6642ae674a57a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 287fdb7 Rebuild for ICU 74