$ git clone -n https://src.fedoraproject.org/rpms/R-biomaRt.git /var/lib/mock/f38-build-side-42-init-devel-995354-29134/root/chroot_tmpdir/scmroot/R-biomaRt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-995354-29134/root/chroot_tmpdir/scmroot/R-biomaRt'...
$ git fetch origin 3bef36617585cea1d50d6d7ff1d832eb15d698f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-biomaRt
 * [new ref]         3bef36617585cea1d50d6d7ff1d832eb15d698f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bef366 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild