$ git clone -n https://src.fedoraproject.org/rpms/R-import.git /var/lib/mock/f38-build-side-42-init-devel-974369-28922/root/chroot_tmpdir/scmroot/R-import
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-974369-28922/root/chroot_tmpdir/scmroot/R-import'...
$ git fetch origin 90609c50630f125bf233d1dbf25aca4157179c06:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-import
 * [new ref]         90609c50630f125bf233d1dbf25aca4157179c06 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90609c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild