Prevent Travis deploy error on tag name

vovtz · vovtz · commit 09e6d7fc9bc9 · 2019-08-06T16:35:43.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,7 @@
 language: java
 jdk: openjdk8
 before_deploy:
+  - git fetch --tags
   - mvn help:evaluate -N -Dexpression=project.version|grep -v '\['
   - export project_version=$(mvn help:evaluate -N -Dexpression=project.version | grep -v '\[')
 deploy:
