$ git clone -n https://src.fedoraproject.org/rpms/R-rcmdcheck.git /var/lib/mock/f38-build-side-42-init-devel-584776-26106/root/chroot_tmpdir/scmroot/R-rcmdcheck
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-584776-26106/root/chroot_tmpdir/scmroot/R-rcmdcheck'...
$ git fetch origin f1bb4891be4ee381746b9a8f31110dfa7ca3fa4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-rcmdcheck
 * [new ref]         f1bb4891be4ee381746b9a8f31110dfa7ca3fa4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1bb489 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild