$ git clone -n https://src.fedoraproject.org/rpms/R-Bessel.git /var/lib/mock/f40-build-789583-135922/root/chroot_tmpdir/scmroot/R-Bessel
Cloning into '/var/lib/mock/f40-build-789583-135922/root/chroot_tmpdir/scmroot/R-Bessel'...
$ git fetch origin 727c3fb8aecea29f63962e24d2609a5037667e20:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-Bessel
 * [new ref]         727c3fb8aecea29f63962e24d2609a5037667e20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 727c3fb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild