$ git clone -n https://src.fedoraproject.org/rpms/R-mockery.git /var/lib/mock/f38-build-side-42-init-devel-924926-28744/root/chroot_tmpdir/scmroot/R-mockery
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-924926-28744/root/chroot_tmpdir/scmroot/R-mockery'...
$ git fetch origin 506fb1573c4dee8fc1b590e7bcacee15a95f9788:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-mockery
 * [new ref]         506fb1573c4dee8fc1b590e7bcacee15a95f9788 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 506fb15 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild