$ git clone -n https://src.fedoraproject.org/rpms/R-lmtest.git /var/lib/mock/f39-build-1470540-33902/root/chroot_tmpdir/scmroot/R-lmtest
Cloning into '/var/lib/mock/f39-build-1470540-33902/root/chroot_tmpdir/scmroot/R-lmtest'...
$ git fetch origin 15834e0c27488e11be83838eac202bd04acbd663:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lmtest
 * [new ref]         15834e0c27488e11be83838eac202bd04acbd663 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15834e0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild