$ git clone -n https://src.fedoraproject.org/rpms/R-Biostrings.git /var/lib/mock/f31-build-73609-31008/root/chroot_tmpdir/scmroot/R-Biostrings
Cloning into '/var/lib/mock/f31-build-73609-31008/root/chroot_tmpdir/scmroot/R-Biostrings'...
$ git reset --hard 38bd2b96b6cf2b86ae1d4f25b94ea2168beeb05c
HEAD is now at 38bd2b9 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild