$ git clone -n https://src.fedoraproject.org/rpms/R-chron.git /var/lib/mock/f37-build-side-32-misc-devel-203348-13148/root/chroot_tmpdir/scmroot/R-chron
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-203348-13148/root/chroot_tmpdir/scmroot/R-chron'...
$ git reset --hard 772a177cd2f1b1c2f79b814b55c6fcee05d3104c
HEAD is now at 772a177 update to 2.3-57, bootstrap on, rebuild for R 4.2.1