[CMT8.4.1.1209]Now merge table ,it will pop error.

1 There are two tables.
CREATE TABLE "bgao"(
"id" integer,
"bid" integer
)
;
CREATE TABLE "c"(
"a" datetime
)
;
2 Do migrate from online to online
3 Goto step3
choose bgao, and c, and change target table name to bgao.
input the column of c.
4 Goto step4
Actual result:
It will pop nullpointerexception.

Then click back, click other table, it will pop error as attachment c.