$ git clone -n https://src.fedoraproject.org/rpms/R-msm /var/lib/mock/f39-build-1588402-38226/root/chroot_tmpdir/scmroot/R-msm
Cloning into '/var/lib/mock/f39-build-1588402-38226/root/chroot_tmpdir/scmroot/R-msm'...
$ git fetch origin 102ad700cc67a4e9ab7e96d8b19eebd165535728:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-msm
 * [new ref]         102ad700cc67a4e9ab7e96d8b19eebd165535728 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 102ad70 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild