$ git clone -n https://src.fedoraproject.org/rpms/R-Biostrings.git /var/lib/mock/f40-build-789264-135696/root/chroot_tmpdir/scmroot/R-Biostrings
Cloning into '/var/lib/mock/f40-build-789264-135696/root/chroot_tmpdir/scmroot/R-Biostrings'...
$ git fetch origin 4f7f4f46643746845552d231050456269b507899:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-Biostrings
 * [new ref]         4f7f4f46643746845552d231050456269b507899 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f7f4f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild