$ git clone -n https://src.fedoraproject.org/rpms/R-lubridate.git /var/lib/mock/f38-build-side-42-init-devel-1028182-29694/root/chroot_tmpdir/scmroot/R-lubridate
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1028182-29694/root/chroot_tmpdir/scmroot/R-lubridate'...
$ git fetch origin 6a3637bb1df2dbb5bbbcfb904a6bbe86c7184285:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lubridate
 * [new ref]         6a3637bb1df2dbb5bbbcfb904a6bbe86c7184285 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a3637b Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild