$ git clone -n https://src.fedoraproject.org/rpms/R-forcats.git /var/lib/mock/f40-build-2136409-50815/root/chroot_tmpdir/scmroot/R-forcats
Cloning into '/var/lib/mock/f40-build-2136409-50815/root/chroot_tmpdir/scmroot/R-forcats'...
$ git fetch origin 4b21586b6f81dfbbf038c460aa291a3da645b2fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-forcats
 * [new ref]         4b21586b6f81dfbbf038c460aa291a3da645b2fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b21586 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild