fix KeyError: 'clean_flag'

Change-Id: I26d24ed1db0668aba4c737058c82e2d655bbf818
Signed-off-by: Ryota MIBU <r-mibu@cq.jp.nec.com>

diff --git a/functest/ci/testcases.yaml b/functest/ci/testcases.yaml
index 722e879..1a1d0f4 100755 (executable)
--- a/functest/ci/testcases.yaml
+++ b/functest/ci/testcases.yaml
@@ -432,6 +432,7 @@ tiers:
                 name: tempest_custom
                 criteria: 'success_rate == 100%'
                 blocking: false
+                clean_flag: false
                 description: >-
                     The test case allows running a customized list of tempest
                     test cases defined in a file under