$ git clone -n https://src.fedoraproject.org/rpms/R-pkgcache.git /var/lib/mock/f37-build-643206-72108/root/chroot_tmpdir/scmroot/R-pkgcache
Cloning into '/var/lib/mock/f37-build-643206-72108/root/chroot_tmpdir/scmroot/R-pkgcache'...
$ git reset --hard e8b1329888f0f9375839ffdd19969459c14bd822
HEAD is now at e8b1329 update to 2.0.1, rebuild for R 4.2.1