$ git clone -n https://src.fedoraproject.org/rpms/R-tkWidgets.git /var/lib/mock/f37-build-side-32-misc-devel-312771-15071/root/chroot_tmpdir/scmroot/R-tkWidgets
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-312771-15071/root/chroot_tmpdir/scmroot/R-tkWidgets'...
$ git reset --hard cdf187db3d1a317673bfaf503d181be0da0d37ec
HEAD is now at cdf187d update to 1.74.0, rebuild for R 4.2.1