$ git clone -n https://src.fedoraproject.org/rpms/R-lubridate.git /var/lib/mock/f40-build-761394-121573/root/chroot_tmpdir/scmroot/R-lubridate
Cloning into '/var/lib/mock/f40-build-761394-121573/root/chroot_tmpdir/scmroot/R-lubridate'...
$ git fetch origin 630aa409b77b4f2e81c63d3341cd9737d869e046:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lubridate
 * [new ref]         630aa409b77b4f2e81c63d3341cd9737d869e046 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 630aa40 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild