$ git clone -n https://src.fedoraproject.org/rpms/signify.git /var/lib/mock/f40-build-805266-144745/root/chroot_tmpdir/scmroot/signify
Cloning into '/var/lib/mock/f40-build-805266-144745/root/chroot_tmpdir/scmroot/signify'...
$ git fetch origin e5aa46282f6696e6648b46544a2e4b0cbda77b97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/signify
 * [new ref]         e5aa46282f6696e6648b46544a2e4b0cbda77b97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5aa462 Update to release v32 (#2268373)