$ git clone -n https://src.fedoraproject.org/rpms/bind.git /var/lib/mock/f41-build-side-1-2656007-28431/root/chroot_tmpdir/scmroot/bind
Cloning into '/var/lib/mock/f41-build-side-1-2656007-28431/root/chroot_tmpdir/scmroot/bind'...
$ git fetch origin 109d2c0507986c5342ae97fcee22854b3683bfba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bind
 * [new ref]         109d2c0507986c5342ae97fcee22854b3683bfba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 109d2c0 Fix build with OPENSSL_NO_ENGINE