$ git clone -n https://src.fedoraproject.org/rpms/man-db.git /var/lib/mock/f40-build-2296878-56421/root/chroot_tmpdir/scmroot/man-db
Cloning into '/var/lib/mock/f40-build-2296878-56421/root/chroot_tmpdir/scmroot/man-db'...
$ git fetch origin e8d5ff504e2c8936276f28c749b104207328ebfa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/man-db
 * [new ref]         e8d5ff504e2c8936276f28c749b104207328ebfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8d5ff5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild