ccl/multiregionccl: TestRegionAddDropWithConcurrentBackupOps failed about cockroach HOT 1 OPEN

github.com/cockroachdb/cockroach/pkg/kv/kvserver.(*baseQueue).lockProcessing(...)
	github.com/cockroachdb/cockroach/pkg/kv/kvserver/pkg/kv/kvserver/queue.go:556
github.com/cockroachdb/cockroach/pkg/kv/kvserver.(*baseQueue).DrainQueue(0xc0114eaf20, {0x7f58040, 0xc362780}, 0xc01dbfc480)
	github.com/cockroachdb/cockroach/pkg/kv/kvserver/pkg/kv/kvserver/queue.go:1447 +0x90
github.com/cockroachdb/cockroach/pkg/kv/kvserver.forceScanAndProcess({0x7f58040, 0xc362780}, 0xc01f5ab508, 0xc0114eaf20)
	github.com/cockroachdb/cockroach/pkg/kv/kvserver/pkg/kv/kvserver/queue_helpers_testutil.go:42 +0xd1
github.com/cockroachdb/cockroach/pkg/kv/kvserver.(*Store).ForceReplicationScanAndProcess(...)
	github.com/cockroachdb/cockroach/pkg/kv/kvserver/pkg/kv/kvserver/queue_helpers_testutil.go:55
github.com/cockroachdb/cockroach/pkg/testutils/testcluster.(*TestCluster).WaitForFullReplication.func2(0xc01f5ab508)
	github.com/cockroachdb/cockroach/pkg/testutils/testcluster/testcluster.go:1440 +0x8e
github.com/cockroachdb/cockroach/pkg/kv/kvserver.(*Stores).VisitStores.func1(0xc018badd40?, 0xc0478a7800?)
	github.com/cockroachdb/cockroach/pkg/kv/kvserver/pkg/kv/kvserver/stores.go:150 +0x26
github.com/cockroachdb/cockroach/pkg/util/syncutil.(*IntMap).Range(0x4000000000000000?, 0xc00ab377c0)
	github.com/cockroachdb/cockroach/pkg/util/syncutil/int_map.go:385 +0xd6
github.com/cockroachdb/cockroach/pkg/kv/kvserver.(*Stores).VisitStores(0x7f57e48?, 0xc362780?)
	github.com/cockroachdb/cockroach/pkg/kv/kvserver/pkg/kv/kvserver/stores.go:149 +0x4e
github.com/cockroachdb/cockroach/pkg/testutils/testcluster.(*TestCluster).WaitForFullReplication(0xc0243dc708)
	github.com/cockroachdb/cockroach/pkg/testutils/testcluster/testcluster.go:1432 +0x40c
github.com/cockroachdb/cockroach/pkg/testutils/testcluster.(*TestCluster).Start(0xc0243dc708, {0x7f97450, 0xc026290340})
	github.com/cockroachdb/cockroach/pkg/testutils/testcluster/testcluster.go:456 +0x493
github.com/cockroachdb/cockroach/pkg/testutils/testcluster.StartTestCluster({_, _}, _, {{{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}, ...}, ...}, ...})
	github.com/cockroachdb/cockroach/pkg/testutils/testcluster/testcluster.go:238 +0x65
github.com/cockroachdb/cockroach/pkg/ccl/multiregionccl/multiregionccltestutils.TestingCreateMultiRegionClusterWithRegionList({_, _}, {_, _, _}, _, {{0x0, 0x0}, {0x0, 0x0}, ...}, ...)
	github.com/cockroachdb/cockroach/pkg/ccl/multiregionccl/multiregionccltestutils/testutils.go:132 +0x1b3
github.com/cockroachdb/cockroach/pkg/ccl/multiregionccl/multiregionccltestutils.TestingCreateMultiRegionCluster({_, _}, _, {{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}, ...}, ...)
	github.com/cockroachdb/cockroach/pkg/ccl/multiregionccl/multiregionccltestutils/testutils.go:89 +0x18f
github.com/cockroachdb/cockroach/pkg/ccl/multiregionccl_test.TestRegionAddDropWithConcurrentBackupOps.func1(0xc026290340)
	github.com/cockroachdb/cockroach/pkg/ccl/multiregionccl_test/pkg/ccl/multiregionccl/region_test.go:942 +0x39d
testing.tRunner(0xc026290340, 0xc01ac9a000)
	GOROOT/src/testing/testing.go:1689 +0xfb
created by testing.(*T).Run in goroutine 733200
	GOROOT/src/testing/testing.go:1742 +0x390