$ git clone -n https://src.fedoraproject.org/rpms/git-annex.git /var/lib/mock/f40-build-2592409-62680/root/chroot_tmpdir/scmroot/git-annex
Cloning into '/var/lib/mock/f40-build-2592409-62680/root/chroot_tmpdir/scmroot/git-annex'...
$ git fetch origin e6a0b738db3dc5b5e0b8efc1361a6109fb89985e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/git-annex
 * [new ref]         e6a0b738db3dc5b5e0b8efc1361a6109fb89985e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6a0b73 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild