Bug #30594 rpl.rpl_skip_error is nondeterministic
Non-determinism in the tests was due to results of SBR are different from those gained with row binlog format. Because tests effectively verify skipping only ER_DUP_ENTRY it is explicitly required to run the test on in mixed and stmt binlog format. ER_DUP_ENTRY is automatically ignored when happened in RBR because of implicit rule favoring reentrant reading from binlog rule which means that a Write_rows_log_event overwrites a slave's row if the one has the same primary key. If future we might have skipping error due to applying of row-based events. The comments added saying a new file would be needed for that: rpl_row_skip_error or smth. mysql-test/suite/rpl/r/rpl_skip_error.result: new results mysql-test/suite/rpl/t/rpl_skip_error-slave.opt: wrong error code that can not happen in the test removed. mysql-test/suite/rpl/t/rpl_skip_error.test: enforcing the test is to skip only errors due to SBR. The current test does not check anything for RBR as ignorable ER_DUP_ENTRY does make sense only for SBR.
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