$ git clone -n https://src.fedoraproject.org/rpms/libifp.git /var/lib/mock/f40-build-2672375-67503/root/chroot_tmpdir/scmroot/libifp
Cloning into '/var/lib/mock/f40-build-2672375-67503/root/chroot_tmpdir/scmroot/libifp'...
$ git fetch origin a987208697782a92e2829d833b3281a6b791b664:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libifp
 * [new ref]         a987208697782a92e2829d833b3281a6b791b664 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a987208 Relax build type safety to fix FTBFS