BUG: use commit hash to determine the branch name

Utilities/Maintenance/SuperbuildDownloadList.sh

@@ -39,13 +39,14 @@ SB_CMAKE_DIR_REL=$CUR_DIR/../../SuperBuild/CMake
 SB_CMAKE_DIR=$(readlink -f "${SB_CMAKE_DIR_REL}")
 cd "$CUR_DIR/../../" || echo "cannot cd to CUR_DIR/../../"
 
-GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
+GIT_HASH=$(git rev-parse --short HEAD)
+GIT_BRANCH=$(git name-rev --name-only ${GIT_HASH})
 
 # the version is the branch name for develop and release-X.Y branches and the commit short hash for other branches
 if [[ ${GIT_BRANCH} =~ develop|release-+[0-9]+\.[0-9] ]] ; then
   VERSION=${GIT_BRANCH}
 else
-  VERSION=$(git rev-parse --short HEAD)
+  VERSION=${GIT_HASH}
 fi
 
 CMAKE_FILES=$(find "${SB_CMAKE_DIR}" -maxdepth 1 -type f -name "External_*")