branch/serial

sql/test/wlcr/wlc50 from 70121:3c6cbe78e1fe, searching backwards on branch candidate-exceptions

serialstatuscommits
70121:3c6cbe78e1feF_ERROR F_OK1 commits
70087:803e16fa3bbfF_ERROR F_OK4 commits
70068:0f81477a5b60F_ERROR F_OK8 commits
70050:c5b71f6df59cF_ERROR F_OK3 commits
70020:6182b4524a70F_ERROR F_OK3 commits
69975:583036e2f31dF_ERROR F_OK2 commits
69963:a655ead1a982F_ERROR F_OK1 commits