Nest: Fix race condition during reconfiguration, part 2

If export filter is changed during reconfiguration and a route disappears
between reconfiguration and refeed (e.g., if the route is a static route
also removed during the reconfiguration), the route is not withdrawn.

The issue was fixed for regular channels by an earlier patch. This patch
fixes the issue for channels in RA_ACCEPTED mode (first-pass-the-filter),
used by BGP with 'secondary' option.
49 jobs from master in 7 minutes and 25 seconds (queued for 19 seconds)
Status Job ID Name Coverage
  Image
passed #149736
dind allowed to fail
docker_centos-6-amd64

00:21

passed #149737
dind allowed to fail
docker_centos-7-amd64

00:18

passed #149726
dind allowed to fail
docker_debian-7-amd64

00:24

passed #149730
dind allowed to fail
docker_debian-7-i386

00:30

passed #149727
dind allowed to fail
docker_debian-8-amd64

00:25

passed #149731
dind allowed to fail
docker_debian-8-i386

00:59

passed #149728
dind allowed to fail
docker_debian-9-amd64

00:25

passed #149732
dind allowed to fail
docker_debian-9-i386

00:57

passed #149729
dind allowed to fail
docker_debian-testing-amd64

00:27

passed #149733
dind allowed to fail
docker_debian-testing-i386

00:55

passed #149734
dind allowed to fail
docker_fedora-25-amd64

00:52

passed #149735
dind allowed to fail
docker_fedora-26-amd64

00:50

passed #149738
dind allowed to fail
docker_opensuse-42_3-amd64

00:21

passed #149739
dind allowed to fail
docker_ubuntu-14_04-amd64

00:22

passed #149740
dind allowed to fail
docker_ubuntu-16_04-amd64

00:21

 
  Build
passed #149753
docker linux amd64
build-centos-6-amd64

01:17

passed #149754
docker linux amd64
build-centos-6-amd64-v6

01:17

passed #149755
docker linux amd64
build-centos-7-amd64

01:15

passed #149756
docker linux amd64
build-centos-7-amd64-v6

01:22

passed #149741
docker linux amd64
build-debian-7-amd64

01:11

passed #149745
docker linux amd64
build-debian-7-amd64-v6

01:12

passed #149763
docker linux amd64
build-debian-7-i386

00:49

passed #149764
docker linux amd64
build-debian-7-i386-v6

00:50

passed #149742
docker linux amd64
build-debian-8-amd64

01:13

passed #149746
docker linux amd64
build-debian-8-amd64-v6

01:25

passed #149765
docker linux amd64
build-debian-8-i386

00:49

passed #149766
docker linux amd64
build-debian-8-i386-v6

00:46

passed #149743
docker linux amd64
build-debian-9-amd64

01:08

passed #149747
docker linux amd64
build-debian-9-amd64-v6

01:21

passed #149767
docker linux amd64
build-debian-9-i386

01:00

passed #149768
docker linux amd64
build-debian-9-i386-v6

00:48

passed #149744
docker linux amd64
build-debian-testing-amd64

01:12

passed #149748
docker linux amd64
build-debian-testing-amd64-v6

01:23

passed #149769
docker linux amd64
build-debian-testing-i386

00:45

passed #149770
docker linux amd64
build-debian-testing-i386-v6

00:46

passed #149749
docker linux amd64
build-fedora-25-amd64

01:10

passed #149750
docker linux amd64
build-fedora-25-amd64-v6

01:24

passed #149751
docker linux amd64
build-fedora-26-amd64

01:13

passed #149752
docker linux amd64
build-fedora-26-amd64-v6

01:28

passed #149771
freebsd amd64
build-freebsd-11-amd64

05:12

passed #149772
freebsd amd64
build-freebsd-11-amd64-v6

04:44

passed #149773
freebsd i386
build-freebsd-11-i386

05:26

passed #149774
freebsd i386
build-freebsd-i386-v6

05:14

passed #149757
docker linux amd64
build-opensuse-42_3-amd64

01:14

passed #149758
docker linux amd64
build-opensuse-42_3-amd64-v6

01:20

passed #149759
docker linux amd64
build-ubuntu-14_04-amd64

00:53

passed #149760
docker linux amd64
build-ubuntu-14_04-amd64-v6

00:58

passed #149761
docker linux amd64
build-ubuntu-16_04-amd64

00:58

passed #149762
docker linux amd64
build-ubuntu-16_04-amd64-v6

00:50