$ git clone -n https://src.fedoraproject.org/rpms/sphinx.git /var/lib/mock/f39-build-1453256-32874/root/chroot_tmpdir/scmroot/sphinx
Cloning into '/var/lib/mock/f39-build-1453256-32874/root/chroot_tmpdir/scmroot/sphinx'...
$ git fetch origin 27eb7ce7554e2e7d20cc2be1efc1950a4873ac87:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sphinx
 * [new ref]         27eb7ce7554e2e7d20cc2be1efc1950a4873ac87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27eb7ce Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild