$ git clone -n https://src.fedoraproject.org/rpms/unixcw.git /var/lib/mock/f40-build-2331709-59104/root/chroot_tmpdir/scmroot/unixcw
Cloning into '/var/lib/mock/f40-build-2331709-59104/root/chroot_tmpdir/scmroot/unixcw'...
$ git fetch origin 3b2d79986165549c5802996f39716750f2bd2b74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unixcw
 * [new ref]         3b2d79986165549c5802996f39716750f2bd2b74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b2d799 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild