jenkins: use last tag for release, not current version.

Refs #51465

Change-Id: I7d58edbdd3e3e1952d8e95fa8c522c3a847a7cbf

tools/build-system/launch-build-machine-jenkins.sh

@@ -133,18 +133,6 @@ cd ${REFERENCE_REPOSITORY}
 echo "Update reference sources"
 git checkout . && git checkout -f master && git pull
 
-# If release, checkout the latest tag
-if [ ${IS_RELEASE} ]; then
-  git checkout ${VERSION_NUMBER}
-fi
-
-echo "Retrieve build info"
-# retrieve info we may need
-if [ ${IS_KDE_CLIENT} ]; then
-	TAG_NAME_PREFIX="kde."
-	LAUNCHPAD_PACKAGES=( "sflphone-kde" )
-fi
-
 # Get the version
 CURRENT_RELEASE_TAG_NAME=`git describe --tags --abbrev=0`
 PREVIOUS_RELEASE_TAG_NAME=`git describe --tags --abbrev=0 ${CURRENT_RELEASE_TAG_NAME}^`
@@ -164,6 +152,19 @@ else
 	PREVIOUS_VERSION=${PREVIOUS_RELEASE_TAG_NAME}
 fi
 
+# If release, checkout the latest tag
+if [ ${IS_RELEASE} ]; then
+  git checkout ${CURRENT_RELEASE_TAG_NAME}
+fi
+
+echo "Retrieve build info"
+# retrieve info we may need
+if [ ${IS_KDE_CLIENT} ]; then
+	TAG_NAME_PREFIX="kde."
+	LAUNCHPAD_PACKAGES=( "sflphone-kde" )
+fi
+
+
 cd ${LAUNCHPAD_DIR}
 
 COMMIT_HASH_BEGIN=""