$ git clone -n https://src.fedoraproject.org/rpms/R-readxl.git /var/lib/mock/f38-build-725339-99605/root/chroot_tmpdir/scmroot/R-readxl
Cloning into '/var/lib/mock/f38-build-725339-99605/root/chroot_tmpdir/scmroot/R-readxl'...
$ git reset --hard 318cf3270cee5acba28264c5fe5b90d0e8610e62
HEAD is now at 318cf32 Ignore vignettes