From: Johannes Schindelin <johannes.schinde...@gmx.de>

When building a PR, TRAVIS_BRANCH refers to the *target branch*.
Therefore, if a PR targets `master`, and `master` happened to be tagged,
we skipped the build by mistake.

Fix this by using TRAVIS_PULL_REQUEST_BRANCH (i.e. the *source branch*)
when available, falling back to TRAVIS_BRANCH (i.e. for CI builds, also
known as "push builds").

Signed-off-by: Johannes Schindelin <johannes.schinde...@gmx.de>
---
 ci/lib.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci/lib.sh b/ci/lib.sh
index 584abcd529..e1858ae609 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -3,7 +3,7 @@
 if test true = "$TRAVIS"
 then
        # We are running within Travis CI
-       CI_BRANCH="$TRAVIS_BRANCH"
+       CI_BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}"
        CI_COMMIT="$TRAVIS_COMMIT"
        CI_JOB_ID="$TRAVIS_JOB_ID"
        CI_JOB_NUMBER="$TRAVIS_JOB_NUMBER"
-- 
gitgitgadget

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