fix invalide paddle_version on tag branch test=develop (#15551)

cmake/version.cmake

@@ -30,10 +30,25 @@ while ("${PADDLE_VERSION}" STREQUAL "")
         else()  # otherwise, get the previous git tag name.
           set(tmp_version "${GIT_TAG_NAME}~1")
         endif()
+      else()
+        execute_process(
+          COMMAND ${GIT_EXECUTABLE} describe --exact-match --tags ${tmp_version}
+          WORKING_DIRECTORY ${PADDLE_SOURCE_DIR}
+          OUTPUT_VARIABLE GIT_EXACT_TAG_NAME
+          RESULT_VARIABLE GIT_EXACT_TAG_RESULT
+          ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
+        if (NOT ${GIT_EXACT_TAG_NAME})
+          # Check if current branch is tag branch
+          if (${GIT_EXACT_TAG_NAME} MATCHES "v${TAG_VERSION_REGEX}")
+            string(REPLACE "v" "" PADDLE_VERSION ${GIT_EXACT_TAG_NAME})
+          else()
+            set(PADDLE_VERSION "0.0.0")
+          endif()
         else()
           # otherwise, we always set PADDLE_VERSION to 0.0.0 to represent latest
           set(PADDLE_VERSION "0.0.0")
         endif()
+      endif()
     else()
       set(PADDLE_VERSION "0.0.0")
       message(WARNING "Cannot add paddle version from git tag")