$ git clone -n https://src.fedoraproject.org/rpms/R-glue.git /var/lib/mock/f40-build-2229704-53170/root/chroot_tmpdir/scmroot/R-glue
Cloning into '/var/lib/mock/f40-build-2229704-53170/root/chroot_tmpdir/scmroot/R-glue'...
$ git fetch origin 91737bfa2f9d3245e7eb988f341ae6be56855cc6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-glue
 * [new ref]         91737bfa2f9d3245e7eb988f341ae6be56855cc6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91737bf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild