$ git clone -n https://src.fedoraproject.org/rpms/pdns-recursor.git /var/lib/mock/f41-build-855871-167429/root/chroot_tmpdir/scmroot/pdns-recursor
Cloning into '/var/lib/mock/f41-build-855871-167429/root/chroot_tmpdir/scmroot/pdns-recursor'...
$ git fetch origin 43a4c590b16246bea79d6285173bdb5e63dbfab3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdns-recursor
 * [new ref]         43a4c590b16246bea79d6285173bdb5e63dbfab3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43a4c59 Update to 5.1.2