$ git clone -n https://src.fedoraproject.org/rpms/ghc-mwc-random.git /var/lib/mock/f40-build-2286430-55710/root/chroot_tmpdir/scmroot/ghc-mwc-random
Cloning into '/var/lib/mock/f40-build-2286430-55710/root/chroot_tmpdir/scmroot/ghc-mwc-random'...
$ git fetch origin 8c2f5168065df202c9637b27b34f233825736882:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mwc-random
 * [new ref]         8c2f5168065df202c9637b27b34f233825736882 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c2f516 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild