Do not fail post-merge jobs if merge request reference is missing

Push without merge request reference on top happens when merging tags
back into the public project so these failures would produce log noise.

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c6143f4f4cd1b70b0011461058dd4e834ea92844..3ef72c21d5c6e7972b27faff3aec9d92cb2bce72 100644 (file)
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2062,7 +2062,7 @@ pairwise:
     - MERGE_REQUEST_ID="$(git log -1 --format='%b' | sed --silent -e "s|^See merge request ${CI_PROJECT_PATH}\!||p")"
     - >
       : stop if this is not a merge request in the current project\'s namespace
-    - test -n "$MERGE_REQUEST_ID"
+    - test -n "$MERGE_REQUEST_ID" || exit 0
     - git clone --depth 1 https://gitlab.isc.org/isc-projects/bind9-qa.git
 
 backports: