Session unit test fix

session.c.diff

diff --git a/ext/session/session.c b/ext/session/session.c
index c3ea950..867d78e 100644
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -538,9 +538,6 @@ static void php_session_initialize(TSRMLS_D) /* {{{ */
                php_session_reset_id(TSRMLS_C);
        }
 
-       /* GC must be done before read */
-       php_session_gc(TSRMLS_C);
-
        /* Read data */
        php_session_track_init(TSRMLS_C);
        if (PS(mod)->s_read(&PS(mod_data), PS(id), &val, &vallen TSRMLS_CC) == FAILURE) {
@@ -550,6 +547,10 @@ static void php_session_initialize(TSRMLS_D) /* {{{ */
                /* php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to read session data: %s (path: %s)", PS(mod)->s_name, PS(save_path)); */
                /* return; */
        }
+
+       /* GC must be done before read */
+       php_session_gc(TSRMLS_C);
+
        /* Set session ID if session read didn't activated session */
        if (PS(use_strict_mode) && PS(session_status) == php_session_none) {
                php_session_reset_id(TSRMLS_C);