$ git clone -n https://src.fedoraproject.org/rpms/libiio.git /var/lib/mock/f39-build-1622000-38752/root/chroot_tmpdir/scmroot/libiio
Cloning into '/var/lib/mock/f39-build-1622000-38752/root/chroot_tmpdir/scmroot/libiio'...
$ git fetch origin 74466940f1f40d3ea87c7cac9f8748e63e9f7316:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libiio
 * [new ref]         74466940f1f40d3ea87c7cac9f8748e63e9f7316 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7446694 0.25