panic in the TestAlterAddConstraintStateChange3 #49825
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panic: runtime error: index out of range [0] with length 0
goroutine 80540 [running]:
github.com/pingcap/tidb/pkg/ddl_test.TestAlterAddConstraintStateChange3.func1(0xc011fc5e00)
pkg/ddl/constraint_test.go:235 +0x5af
github.com/pingcap/tidb/pkg/ddl/util/callback.(*TestDDLCallback).OnJobUpdated(0xc013e23e30, 0xc011fc5e00?)
pkg/ddl/util/callback/callback.go:124 +0x1dd
github.com/pingcap/tidb/pkg/ddl.(*ddl).delivery2worker.func1()
pkg/ddl/job_table.go:439 +0x171b
github.com/pingcap/tidb/pkg/util.(*WaitGroupWrapper).Run.func1()
pkg/util/wait_group_wrapper.go:157 +0x87
created by github.com/pingcap/tidb/pkg/util.(*WaitGroupWrapper).Run in goroutine 79460
pkg/util/wait_group_wrapper.go:155 +0xe5