$ git clone -n https://src.fedoraproject.org/rpms/R-readr.git /var/lib/mock/f33-build-442368-63300/root/chroot_tmpdir/scmroot/R-readr
Cloning into '/var/lib/mock/f33-build-442368-63300/root/chroot_tmpdir/scmroot/R-readr'...
$ git reset --hard 992966f13abc09fb25324d32ad17c9e64565947b
HEAD is now at 992966f Update to latest version.