$ git clone -n https://src.fedoraproject.org/rpms/R-expm.git /var/lib/mock/f38-build-724051-99309/root/chroot_tmpdir/scmroot/R-expm
Cloning into '/var/lib/mock/f38-build-724051-99309/root/chroot_tmpdir/scmroot/R-expm'...
$ git reset --hard 62861ed3c1311a0be5aad2323f1a746c51bffaf0
HEAD is now at 62861ed R-maint-sig mass rebuild